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Governmental & Military >> NASA Abbreviations

Look through 5000 acronyms and abbreviations related to NASA:

• BCWS — budgeted cost for work scheduled
• I/W — in work
• LSPPS — Logistics Support Plan for Preoperational Support
• LAN — Local Area Network
• OPS — Operations
• DD/HH:MM:SS — Day/Hour:Minute:Second
• E&L — engineering and lab
• AU — Accounting Unit
• USA — United States of America
• US — United States of America
• H2O2 — Hydrogen Peroxide
• CMCS — Centralized Maintenance Computer System
• ASAP — As Soon As Possible (pronounced AY-sap)
• DELOG — design engineering logistics
• FSCM — Federal Supply Code for Manufacturers (replaced by CAGE code)
• ANSI — American National Standards Institute, Inc.
• FLSA — Fair Labor Standards Act
• ROM — Read-Only Memory
• I&ES — information and electronics system
• K-LOAD — constant load
• I/OC — input/output controller
• POC — Point Of Contact
• IP — Internet Protocol
• BRDF — Bidirectional Reflectance Distribution Function
• CCTV — Closed-circuit television
• FTE — Full Time Equivalent
• LIFO — Last In, First Out
• A&COTA — Assembly and Checkout Technical Analysis
• CAD-OPS — computer-aided design costing for operations
• B-L — bill of lading
• A — Ampere
• C/SSR — Cost/Schedule Status Report
• E/OCM — electromagnetic/optical countermeasure
• A&TA — Assembly and Test Area
• I/OU — input/output unit
• C&CS — command and control subsystem
• MOU — Memorandum of Understanding (an MOU between Food & Drug Administratin and a regulatory agency in another country allows mutual recognition of inspections)
• ISO — International Organization for Standardization
• JAEL — JSC Avionics Engineering Laboratory
• CO2 — Carbon Dioxide
• LED — Light-Emitting Diode
• ISP — Internet Service Provider
• DR — Discrepancy Report
• H/B — hyperbaric
• K-DODM — KSC DOD Plan/Requirement
• TIM — Technical Interchange Meeting
• BTU — British Thermal Unit
• CBC — Complete Blood Count
• CY — Calendar Year
• J-BOX — Junction Box

• ISAR — Inverse Synthetic-Aperture Radar
• A&RC — Application and Resource Control
• DEC — Digital Equipment Corporation
• CEO — Chief Executive Officer
• K-DPPS — KSC DOD Payloads Project Specification
• MA&T — Manufacturing Assembly And Test
• C/SR — cost/schedule report
• K-APM — KSC Automated Payloads Plan/Requirement
• LAMOD — laser optical motion detector
• C&TSS — Communication and Tracking Subsystem
• B/V — Bleed Valve
• AA — Affirmative Action
• F&IE — Facilities And Industrial Engineering
• TBD — To Be Determined
• K-MMSEN — KSC MMSE Notice
• C-BARS — classified baseline accounting and reporting system
• EAP — Employee Assistance Program
• A&SS — alignment and stabilization subsystem
• I/U — instrumentation unit
• K-DPM — KSC DOD Payloads Plan/Requirement
• SME — Subject Matter Expert
• WBS — Work Breakdown Structure
• K-MMSEM — KSC MMSE Plan/Requirement
• K-DPN — KSC DOD Payloads Notice
• K-CITEM — KSC CITE Plan/Requirement
• EST — Eastern Standard Time
• K-APN — KSC Automated Payloads Notice
• CCB — Change Control Board
• G&N — Guidance and Navigation
• K-APPS — KSC Automated Payloads Project Specification
• K-MMSEPS — KSC MMSE Project Specification
• K-IUSM — KSC IUS Plan/Requirement
• CDR — Critical Design Review
• I/OMI — integration, operations, and maintenance instruction
• H/SIR — hardware and software integration review
• M&RF — Maintenance And Refurbishing Facility
• C/S/P — cost/schedule/performance
• FY — Fiscal Year
• AADSF — Advanced Automated Directional Solidification Furnace
• ASME — American Society of Mechanical Engineers
• C&DSS — communication and data subsystem
• K-SLPS — KSC Spacelab Project Specification
• C-DEL — complete delivery
• K-IUSPS — KSC IUS Project Specification
• QA — Center for Quality Assurance in International Education
• ARPA — Advanced Research Projects Agency (made early internet)
• LLL — Limited-Life List
• JIT — Just in time
• DA&E — Data Analysis and Evaluation
• AIAA — American Institute of Aeronautics and Astronautics, Inc.

• EOF — End Of File
• IBM — International Business Machines Corporation
• AM — Amplitude Modulation
• DA&D — Data Acquisition and Distribution
• C/SCS — Cost/Schedule Control System
• SSI — Server Side Include
• C-RFE — C-band RF electronics
• K-SSS — KSC Shuttle Project Station Set Specification
• K-SPN — KSC Shuttle Project Notice
• K-SLN — KSC Spacelab Notice
• E/B — equipment bay
• CLIN — Contract Line Item Number
• DARPA — Defense Advanced Research Projects Agency (US)
• F&P — fluids and propulsion
• K-SPS — KSC Shuttle Project Specification
• K-SLM — KSC Spacelab Plan/Requirement
• L-RFE — L-band RF electronics
• K-SM — KSC Shuttle Management Document
• G/N — general notes
• ADP — Automated Data Processing
• CD — Compact Disc
• AADEW — attack assessment for directed-energy weapon
• MA&P — Maintenance Analysis And Planning
• C/DPM — cost/design performance management
• ESA — European Space Agency
• D&PA — design and product assurance
• FA< — first approach and landing test
• PCB — printed circuit board
• I/FU — interface unit
• I/OB — input/output bus
• I&C/O — installation and checkout
• G/AIT — ground/airborne IGS terminal
• L&LS — launch and landing site
• NSF — National Sanitation Foundation
• E&DSG — Electro-Optical and Data Systems Group
• M/PHE — material or personnel handling equipment
• I/OT — input/output test
• DOT — Department of Transport
• CAE — Computer-Aided Engineering
• DRAM — Dynamic Random Access Memory (dee-ram) (computing)
• LANDSAT-7 — Land Remote Sensing Satellite
• G&CI — guidance and control integration
• ASA — American Standards Association
• J-T — Joule-Thompson
• AGC — Automatic Gain Control
• D* — normalized detectivity
• BBS — Bulletin Board System
• CBO — Congressional Budget Office
• G&CEP — guidance and control equipment performance
• CCB — Configuration Control Board

• GA&CS — Ground Acquisition and Command Station
• MCRDF — mission configuration requirements data file
• ATA — Area Transportation Authority
• CAALIS — computer-aided assembly-line inspection system
• J-FACT — joint flight acceptance composite test
• AACPSM — actual average cost per successful mission
• I/OP — inboard/outboard profile
• AHRS — Attitude Heading Reference System
• MADCS — modular attitude determination and control system
• M-M-L-S — Model-Modes-Loads-Stresses
• DES — Data Encryption Standard
• MA&SE — mission analysis and system engineering
• J-CLOT — joint closed-loop operations test
• CFR — Code of Federal Regulations
• LANI5 — lanthanum pentanickel
• G-II — Gulfstream II
• AGL — Above Ground Level
• DAMMPS — damping and metal matrix for precision structure
• CBT — Computer Based Training
• HMO — Health Maintenance Organization
• HVAC — Heating, Ventilation, and Air Conditioning
• BP — Blood Pressure
• DOS — Disk Operating System
• CDRL — Contract Data Requirements List
• ATC — Air traffic control
• M/LR — Maintenance Loop Recorder
• DOE — United States Department of Energy (government)
• CA — California
• SDD — Software Design Document
• HZ — cycles per second (hertz)
• STD — Standard
• ITU — International Telecommunication Union
• CONUS — Continental United States (48 Contiguous States and DC)
• GNP — gross national product (economics)
• MHZ — Megahertz (Megacycles Per Second)
• AVO — avoid verbal orders
• ACM — Association for Computing Machinery
• SAR — Search And Rescue
• ICAO — International Civil Aviation Organization
• FAR — Federal Acquisition Regulation
• VHF — Very High Frequency
• DANASAT — direct-ascent nuclear ASAT
• M&O — Maintenance and Operations
• AK — Alaska
• MORT — management oversight and risk tree
• DARPA/LL — DARPA Lincoln Laboratory
• PD — Position Description
• EDM — Engineering Development Model
• LNG — Liquefied Natural Gas
• ECN — Engineering Change Notice

• BOM — Bill of Material
• BOD — Board of Directors (Budget)
• MIN — Minute
• MB — Megabyte
• ADC — Air Data Computer
• AS/RS — automated storage and retrieval system
• SIC — Standard Industrial Classification (Code)
• GSA — U.S. General Services Administration
• ASL — Above Sea Level
• ACRS — Accelerated Cost Recovery System (finance)
• ASM — American Society for Metals International
• HQ — Headquarters (HDQ Preferred)
• ACL — Access Control List
• ABRES — antiballistic reentry system
• IR — Infrared
• JOA — joint operating agreement
• CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
• ADPE — Automatic Data Processing Equipment
• CH4 — Methane, Natural Gas
• CASB — Cost Accounting Standards Board
• AOP — Annual Operating Plan
• APU — Auxiliary Power Unit
• BP — Boiling Point
• KBS — Knowledge-Based System
• DBA — Data Base Administrator
• MIN — Minimum
• BAFO — Best and Final Offer
• A&PS — Administration and Program Support
• ERISA — Employee Retirement Income Security Act
• PM — Program Manager
• PCB — Polychlorinated Biphenyls
• FICA — Federal Insurance Contribution Act
• CASE — computer-automated software engineering
• ACWP — actual cost for work performed
• I/O — Input/Output
• BOD — Beneficial Occupancy Date
• MD — Maryland
• GAO — Government Accountability Office [formerly the General Accounting Office]
• CAR — Corrective Action Request
• AFCS — Automatic Flight Control System
• FDDI — Fiber Distributed Data Interface
• ESOW — Engineering Statement of Work
• AT&T — American Telephone & Telegraph
• MBO — Management by Objective
• FORTRAN — FORmula TRANslation (a computer language)
• GIF — Graphic Interchange Format
• CDMA — Code Division Multiple Access (voice/data transmission)
• IDG — Integrated Drive Generator
• ACO — Administrative Contracting Officer  
• ASCE — l'American Society of Civil Engineers

• A/S — Airspeed
• IAW — In Accordance With
• MIL — Military
• AF — Air Force
• CAS — Configuration Accounting System
• EM — Electromagnetic
• DFD — Data Flow Diagram
• DTE — Data Terminal Equipment
• PLC — Programmable Logic Control
• LOS — Line Of Sight
• GPO — Government Printing Office
• FM — frequency modulation
• AWG — American Wire Gauge
• A — Analog
• AST — Arabic Standard Time
• MOPA — Master Oscillator Power Amplifier
• BW — Bandwidth
• FRAGNET — Fragmented Network
• AP&P — advanced plans and programs
• TV — Television
• AI — Artificial Intellegence
• ALC — Air Logistics Center
• CM — Configuration Management
• DUNS — Data Universal Numbering System
• EQUIP — Equipment
• NPD — NASA Procedural Directive
• CU — Control Unit
• COI — Conflict Of Interest
• AICE — American Institute of Chemical Engineers
• KB — Keyboard
• CAI — Computer-Aided Instruction
• GB — Gigabyte
• Y2K — Year 2000
• AFC — Automatic Frequency Control
• DMSP — Defense Meteorological Satellite Program (U.S.)
• IDL — Indentured Drawing List
• AMRO — AMR operations
• CMD — Command
• FDMA — Frequency Division Multiple Access
• BAU — Business As Usual
• ISS — International Space Station
• CMA — Configuration Management Accounting
• CHEM — Chemistry
• IOC — Initial Operational Capability
• DSP — Digital Signal Processor
• ADC — Aerospace Defense Command
• HR — Hour
• COCOMO — COnstructive COst MOdel
• JAXA — Japan Aerospace Exploration Agency
• CICA — Competition in Contracting Act (1984)

• AU — Astronomical Unit
• ELF — Extremely Low Frequency
• C — Center
• AFSCN — Air Force Satellite Control Network
• LOL — Limit of Liability
• LANL — Los Alamos National Laboratory
• SCR — Selective Catalytic Reduction
• DBM — Data Base Management
• AIIM — Association for Information and Image Management International
• EPROM — Erasable Programmable Read-Only Memory
• E-MAIL — Electronic Mail
• BM — Branch Manager
• AEM — Assembly and External Maintenance
• DITMO — development, integration, test, and mission operations
• ALC — Automatic Level Control
• VOL — Volume
• COBOL — Common Business-Oriented Language
• CCM — counter-countermeasure
• EW — Electronic Warfare
• CAD — Computer-Aided Design
• GYM — General José María Yáñez International Airport, Guaymas, Mexico
• UPS — Uninterruptible Power Supply
• EMF — Electromotive Force
• BWG — Birmingham Wire Gauge
• ELINT — Electronic Intelligence Satellite
• LSAS — Logistics Support Analysis Strategy
• CBARS — classified baseline accounting and reporting system
• AISI — American Iron and Steel Institute
• C — Celsius
• GERT — graphical evaluation and review technique
• ATS — applications technology satellite
• CARS — Configuration Accounting and Reporting System
• ADS — Astrophysics Data System
• CNC — Computer Numerical Control
• AES — Auger Electron Spectroscopy
• GE — General Electric American Communications Inc.
• PIN — Personal Identification Number
• AIA — Aircraft Industries Association
• CCSDS — Consultative/Consultative Committee for Space Data Systems
• FRJD — Forward Reaction Jet Driver
• AEC — Atomic Energy Commission (superseded by ERDA)
• ARC — Ames Research Center (NASA)
• STS — Space Transportation System
• HW — Hardware
• CAP — Cost Account Package (NASA)
• SDB — Small Disadvantaged Business
• CVAS — Configuration Verification Accounting System
• ATP — Authority To Proceed
• DCAA — (U.S.) Defense Contract Audit Agency
• LWOP — Leave Without Pay

• CONOPS — Concept of Operations
• AGMA — American Gear Manufacturer's Association
• ALV — Advanced Logistics Vehicle
• MTBD — Mean Time Between Demand
• CMVAS — configuration management verification accounting system
• DR/MR — discrepancy report/material review
• ADC — Analog-Digital Converter
• ASQC — American Society for Quality Control's
• BME — Bench Maintenance Equipment
• APT — automatic programmed tool
• JPL — Jet Propulsion Laboratory (California Institute of Technology) (NASA)
• IRS — Interface Requirements Specification
• BP — bid and proposal
• AIS — Airborne Imaging Spectrometer
• AFLC — Air Force Logistics Command's
• ALMS — Automated Logistics Management System
• ISAS — Institute of Space and Astronautical Sciences (Japan)
• BOS — Backup Operating System
• BAC — Boeing Aerospace Company
• LOC — Lines Of Code
• MECAS — mission equipment configuration accounting system
• AFB — Air Force Base (USAF)
• ERM — Executive Review Meeting
• LRR — Launch Readiness Review
• ALS — advanced logistics system
• GAO — Government Accounting Office
• HWCI — Hardware Configuration Item
• ASAP — Aerospace Safety Advisory Panel
• APMSM — assembly phase maintenance simulation model
• ALGOL — Algorithmic Language
• VPP — Voluntary Protection Program
• CESA — Canadian Engineering Standards Association
• ERB — Engineering Review Board
• A/N — Alphanumeric
• IBEW — International Brotherhood of Electrical Workers
• MINW — Master Interface Network
• ACR — Actual Cost Report
• BMB — Base Maintenance Building
• CDMS — Command and Data Management System
• CIL — critical items list
• JFAS — Jet Fuel Accounting System
• NIS — Network Information System
• AFGL — Air Force Geophysics Laboratory
• DOS — United States Department of State
• DBCR — Data Base Change Request
• MBAR — Marshall Baseline Accounting and Reporting
• GHZ — Gigahertz
• EMT — Electrical Metallic Tubing
• BOS — bright-object sensor
• CN — Change Notice

• LCC — Life Cycle Cost
• ACRIM — Active Cavity Radiometer Irradiance Monitor (EOS)
• A/C — Aircraft
• AR — As Required
• APL — Average Picture Level
• ATS — Advanced Technology Satellite
• CFD — computational fluid dynamics
• AP — Access Panel
• BMB — Bench Maintenance Building
• STTR — Small Business Technology Transfer
• EGA — Evolved Gas Analysis
• VTC — Video Teleconference
• JSC — Johnson Space Center (Houston, TX)
• AIEE — American Institute of Electrical Engineers
• ATP — Acceptance Test Procedure
• FMCS — Federal Mediation and Conciliation Service
• AMU — Astronaut Maneuvering Unit
• FORD — Flight Operations Requirement Document
• AL — Approach and Landing
• ATR — Air Transport Rack
• MTBCF — Mean Time Between Critical Failures
• RFS — Request For Service
• MBPS — Megabytes Per Second
• LMT — Logistics Management Transfer
• OSO — Orbiting Solar Observatory
• AFBMA — Antifriction Bearing Manufacturing Association
• AFM — Air Force Manual
• AFWAL — Air Force Wright Aeronautical Laboratory
• MOE — Measure Of Effectiveness
• ASK — amplitude shift keying
• CALS — Computer-Aided Acquisition and Logistics Support (CAALS)
• FUI — Federal Unemployment Insurance
• DOC — United States Department of Commerce
• AGE — Aerospace Ground Equipment
• MGI — Management Group Identifier
• MBM — Magnetic Bubble Memory
• FIFO — first in/first out
• MIRS — management information and reporting system
• MACS — Management and Control System
• A&L — Approach and Landing
• BP — Blueprint
• A&CO — activation and checkout
• J — Joule
• EHF — Extremely High Frequency
• AOCS — Attitude and Orbit Control System
• A&R — Assembly and Recycle
• CMTS — Computerized Maintenance Test System
• FAPE — Florida Association of Professional Employees
• ADF — Automatic Direction Finder
• IF — Intermediate Frequency

• GMLCC — Ground Mobile Launch Control Center
• DNS — Domain Name Server
• BITE — Built-In Test Equipment
• ATF — Advanced Tactical Fighter
• A&P — Attitude and Pointing
• DHS — Department of Human Services
• EDMS — Electronic Data Management System
• M&C — Maintenance And Checkout
• AAE — American Association of Engineers
• ECCM — electronic counter-countermeasures (electromagnetic spectrum)
• KE — Kinetic Energy
• TOR — terms of reference (ICAO/FAA)
• COBE — Cosmic Background Explorer Satellite (NASA)
• BIT — Built-In Test
• LRIP — Low-Rate Initial Production
• CCN — Contract Change Notice
• AFSCF — Air Force Satellite Control Facility
• EMRL — Equipment Maintenance Requirements List
• DILSA — distributed integrated logistics support analysis
• ACPM — Attitude Control Propulsion Motor
• ECC — Emergency Control Center
• APD — Avalanche Photo Diode
• AUC — Average Unit Cost
• COIL — Chemical Oxygen-Iodine Laser
• AFSAT — Air Force Satellite
• MRE — Material Review Engineering
• LOIS — Logistics Information Simulator
• ADL — Avionics Development Laboratory
• LPE — Liquid Phase Epitaxy
• ALS — Automatic Landing System
• AFALD — Air Force Acquisition Logistics Division
• A&R — Automation and Robotics
• ACE — Advanced Composition Explorer
• DMPI — Desired Mean Point of Impact
• BFS — Backup Flight Software
• AOS — Acquisition Of Signal
• C3 — Command, Control, and Communications
• FAX — Facsimile
• LSACN — logistics support analysis control number
• ADC — Air Defense Command
• ARA — Attitude Reference Assembly
• CR — Change Request
• AKM — Apogee Kick Motor
• DAZE — different-alpha zero-strain E
• CCR — Contract Change Record
• GFE — Government-Furnished Equipment
• EIM — Engineering Information Management
• AAP — Affirmative Action Program
• GATT — gate-assisted turnoff thyristor
• DMF — Depot Maintenance Facility

• A/D — Analog-to-Digital
• AOC — Annual Operating Cost
• EWO — Engineering Work Order
• HW/SW — Hardware/Software
• ACP — Airborne Command Post
• FDK — Flight Display Keyboard
• ELM — Experimental Logistics Module
• FLT — Flight
• LLNL — The Department of Energy's Lawrence Livermore National Laboratory in Livermore, California
• ACAP — Advanced Computer Airframe Program
• IGOR — Intercept Ground Optical Recorder
• LOGCENT — Logistics Control Center
• M&P — Materials and Processes
• FR — Frame Relay
• ABMA — Army Ballistic Missile Agency
• ELT — Emergency Locator Transmitter
• SAR — synthetic aperture radar (satellite)
• ACS — Attitude Control System
• PIO — Public Information Office
• AMR — Atlantic Missile Range
• LSUR — launch site utilization report
• EIA — Electrical Industries Association
• GSFC — Goddard Space Flight Center (Greenbelt, MD)
• DMCF — deservicing, maintenance, and checkout facility
• BDS-2 — booster phase detection system
• CSTC — Consolidated Space Test Center
• EPDM — Ethylene Propylene Diene Monomere
• LDRP — Logistics Depot Repair Procedure
• ERBS — Earth Radiation Budget Satellite
• M&F — Manufacturing and Facilities
• EAC — Estimate At Completion
• RID — Review Item Discrepancy
• BOA — Broad Ocean Area
• FCAP — Flight Control Applications Program
• ADAMS — Automated Dynamic Analysis of Mechanical Systems
• ID&D — inspection damage and discrepancy
• STP — Space Test Program
• MCW — Modulated Continuous Wave
• AIDS — Airborne Integrated Data System
• AA — Associate Administrator
• BM — Bench Maintenance
• LR/LD — Line Receiver/Line Driver
• AFS — Air Force Station
• CEQ — Council on Environmental Quality (U.S.)
• FCV — Flow Control Valve
• ECCB — Engineering Change Control Board
• AFO — Announced Flight Opportunity
• EIRP — Effective Isotropic Radiated Power
• CCAFS — Cape Canaveral Air Force Station, an air force base in Florida where NASA launches satellites from.
• SRS — Software Requirements Specifications

• MIO — Management Integration Office
• LEA/MP — logistics engineering analysis and maintenance planning
• ACU — Avionics Cooling Unit
• JOD — Joint Occupancy Date
• ASIC — application-specific integration circuit
• CLMC — Central Logistics Management Center
• ISMS — Interactive Supply Management System
• MIMR — Monthly Integration Management Review
• DDN — U.S. Defense Data Network
• AFC — Automatic Flight Control
• LARC — Langley Research Center (NASA)
• CCU — Central Control Unit
• DH — Decision Height
• AFSTC — Air Force Space Technology Center
• A/A — Air-to-Air
• AFSC — United States Air Force specialty code
• AFOTEC — Air Force Operational Test and Evaluation Center's
• EOS — Earth Observation Satellite
• ERTS — Earth Resources Technology Satellite (now Landsat)
• MEBA — Marine Engineers' Beneficial Association
• MRDA — Mission Requirements Definition and Analysis
• DD&T — design, development, and test
• MSFC — Marshall Space Flight Center (Huntsville AL)
• MPB — Maintenance Parts Breakdown
• AWS — American Welding Society's
• AB — Avionics Bay
• ABM — Apogee Boost Motor
• AABNCP — Advanced Airborne National Command Post
• BHP — Brake Horse Power
• ESMC — Eastern Space And Missile Center (formerly AFETR)
• M&M — Materials And Maintenance
• MCIS — Material Control and Information System
• LLC — Logical Link Control
• BMTS — Bench Maintenance Test Set
• CDI — Course Deviation Indicator
• CCN — Contract Change Notification
• CB — Circuit Breaker
• FRB — Failure Review Board
• AI — Action Item
• AFT — Atmospheric Flight Test
• MS — Management System
• IMS — Information Management System (LTPP)
• ACE — Attitude Control Electronics
• LIU — Line Interface Unit
• AISC — American Institute of Steel Construction, Inc.
• ACDA — Arms Control and Disarmament Agency's
• QPSK — aeronautical quadrature phase shift keying
• ISF — Industrial Space Facility
• AUTOVON — Automatic Voice Network
• ISO — Infrared Space Observatory

• ASD — Aeronautical Systems Division
• MB — Megabit
• LSAR — Logistics Support Analysis Record/Report
• ID — IDentifier
• LLT — Long Lead Time
• IQT — Initial Qualification Training
• NAC — National Agency Check
• USRA — Universities Space Research Association
• CS — Customer Service
• ATS — Acceptance Test Specification
• CAP — Computer Application Program
• MAWG — Maintenance Analyzer Working Group
• BSP — Business System Planning
• EADI — Electronic Attitude Director Indicator
• MEL — Minimum Equipment List
• HNCO — high-precision numerical-controlled oscillator
• MSAD — Materials Summary Acceptance Document
• ABE — air-based electronics
• APL — Applied Physics Laboratory (at Johns Hopkins)
• HUD — Head-Up Display
• KSC — John F. Kennedy Space Center
• BFSS — Backup Flight Software System
• DSCIM — Display System Computer Input Multiplexer
• I/F — Interface
• LCV — Logistics Cargo Vehicle
• PMP — Program Management Plan
• LVIS — Logistics Verification Information System
• ID&C — integrated displays and controls
• MERSAT — Meteorology And Earth Observation Satellite
• GSF — Gyro Scale Factor
• LBSP — Logistics Business Systems Plan
• AOA — Angle Of Attack
• ASL — Approved Source List
• SMS — Shuttle Mission Simulator
• AG — Artificial Gravity
• ARDC — Air Research and Development Command
• DLSC — Defense Logistics Service Center
• GDOP — Geometric Dilution Of Precision
• MSB — Most Significant Bit
• MPAR — Maintainability Problem and Assessment Report
• BFC — Backup Flight Control
• BIU — Bus Interface Unit
• ATA — Advanced Tactical Aircraft
• EMISM — Electromagnetic Interference Safety Margin
• DSAD — Data Systems and Analysis Directorate
• INS — Inertial Navigation System
• ANL — Automatic Noise Limiter
• KIMS — KSC Inventory Management System
• MECR — Maintenance Engineering Change Request
• DIA — Defense Intelligence Agency (USA)

• MS-DOS — Microsoft Disk Operating System
• EDR — Engineering Design Review
• CBR — California Bearing Ratio
• USNO — United States Naval Observatory
• CRES — Corrosion Resistance Steel
• ABL — Airborne Laser
• FID — Flight Implementation Directive
• AFD — Aft Flight Deck
• AOA — Airborne Optical Adjunct
• ADADL — Ada design and documentation language
• LMDS — Logistics Management Data System
• FL — Florida
• HCL — Hydrogen Chloride
• BASS — Backup Avionics System Software
• DPS — Data Processing System
• LMRT — Logistics Management Responsibility Transfer
• EWR — Engineering Work Request
• DCN — Document Control Number
• DID — data item description
• AAFE — Advanced Applications Flight Equipment
• ABE — air-breathing engine
• USN — United States Navy
• MEOP — Maximum Expected Operating Pressure
• SMDS — Switched Multimegabit Data Service (ATM)
• ACPM — Associate Contractor Program Manager
• BFS — Backup Flight System
• ACIP — Aerodynamic Coefficient Instrumentation Package
• JCL — Job Control Language
• BS — Beam Splitter
• AAIR — Advanced Atmospheric sounder and Imaging Radiometer
• CER — Cost Estimating Relationship
• APL — applications program library
• AA — Accelerated Assembly
• CC — Control Center
• VSOP — VLBI Space Observatory Program
• AXAF — Advanced X-Ray Astrophysics Facility
• AOI — Area Of Interest
• ACI — Allocated Configuration Identification
• ACMS — Automated Configuration Management System
• APLM — Applications Program Library Maintenance
• ATC — Air Training Command
• LEA — Logistics Engineering Analysis (Analyses)
• AF — Aft Fuselage
• DSR — Data Storage and Retrieval
• LDR — Low Data Rate
• FAO — FLIGHT ACTIVITIES OFFICER
• AMST — Advanced Medium STOL Transport
• C/O — Checkout
• EUV — Extreme Ultraviolet Vertical
• DTS — Data Transfer System

• AWS — Air Weather Service
• LISP — List Processing Language
• CD — Candela
• AOQL — Average Outgoing Quality Limit
• GOASEX — GULF OF ALASKA SEASAT EXPERIMENT
• ABES — air-breathing engine system
• ABNCP — Airborne National Command Post
• EMCON — Electromagnetic Emission Control
• CDA — Command and Data Acquisition
• AHP — Analytical Hierarchy Process
• FDL — Flight Director Loop
• JTG — Joint Training Group
• MFA — Manned Flight Awareness
• FCDB — Flight Control Data Bus
• AP — access point
• MMS — Multimission Modular Spacecraft
• AMEC — Aft Master Events Controller
• AMPS — Atmospheric Magnetospheric Plasma System
• EPMS — Engineering Performance Management System
• LADS — Logistic Automated Data System
• ADCR — Applicable Document Contractual Record
• CCO — Customer Contracting Officer
• RM — Risk Management
• AIL — Avionics Integration Laboratories
• LCC — Launch Control Center (KSC)
• VC — Virtual Channel
• LNA — Low-Noise Amplifier
• OC — Optical Carrier
• DC — District of Columbia
• ARTCC — Air Route Traffic Control Center
• ATO — Abort To Orbit
• ARRA — American Recovery and Reinvestment Act
• LAMPS — Light Airborne Multipurpose System (Helicopter)
• ARS — American Rocket Society
• ATG — Aerospace Test Group
• NM — New Mexico
• AFA — Airframe Assembly
• AOC — Auxiliary Output Chip
• ASE — Airborne Support Equipment
• ERSIR — Earth Resources Shuttle Imaging Radar
• A/P — Autopilot
• AFDO — Aft Flight Deck Operator
• QRA — Quantitative Risk Assessment
• FO-FO-FS — fail operational/fail operational/fail safe
• MLW — Maximum Landing Weight
• LPLWS — Launch Pad Lightning Warning System
• IDBMS — Integrated Data Base Management System
• ARS — Attitude Reference System
• AES — American Electrochemical Society
• HEOO — Honeywell Electro-Optical Operations

• BHN — Brinell Hardness Number
• FCTB — Flight Crew Training Building
• CRRES — Combined Release and Radiation Effects Satellite
• MMF — Magnetomotive Force
• AFAPL — Air Force Aero Propulsion Laboratory
• AIME — American Institute of Mechanical Engineers
• ASG — Aeronautical Standards Group
• BSEE — Bachelor of Science degree in electrical engineering
• AACS — Attitude and Antenna Control System
• AI/ES — artificial intelligence/expert system
• SDR — System Design Review
• BFCS — Backup Flight Control System
• DBCI — DB With Respect To A Circular Polarized Antenna
• EGSE — Electrical Ground Support Equipment
• SAS — Small Astronomy Satellite
• HK — Housekeeping
• ATP — Acceptance Test Plan
• ALTR — Approach and Landing Test Requirement
• LIS — Logistics Information System
• IG — Inspector General (HHS)
• C/B — Circuit Breaker
• DOY — Day of Year
• ACPO — Associate Contractor Project Office
• CFAR — Constant False Alarm Rate
• ANMCC — Alternate National Military Command Center
• DP&SS — Data Processing And Software Subsystem
• ALAS — Approach/Landing Autopilot Subsystem
• OIG — Office of Inspector General
• SV — Space Vehicle
• AOD — Aircraft Operations Division
• ALS — Advanced Launch System
• CAR — Contractual Action Request
• DIDS — Defense Integrated Data System
• LSCA — Logistics Support Cost Analysis
• ATE — Automatic Test Engineer
• SDR — Software Defined Radio
• ADP — Acceptance Data Package
• AC — Aerodynamic Center
• AASM — Association of American Steel Manufacturers
• APC — armored personnel carrier
• A&A — Advertise and Award
• IP — International Partner
• FCDC — Flexible Confined Detonating Cord
• MSCB — Manufacturing Status Control Board
• FM/PM — Frequency Modulation/Phase Modulation
• AEDC — Arnold Engineering Development Center
• HST — Hubble Space Telescope
• MFF — MDM Flight Forward
• ODY — Odyssey
• AFRPL — Air Force Rocket Propulsion Laboratory (USA)

• ABCP — Airborne Command Post
• FFSAC — field functional systems assembly and checkout
• ABI — Avionics Bus Interface
• ADR — Aerospace and Defense Research
• DC&I — documentation, control, and integration
• MOSPO — Mobile Satellite Photometric Observatory
• A/P — Airport
• CDI — Contract Definition Instruction
• FD — Flight Dynamics
• LOR — Lunar Orbit Rendezvous
• ASO — Aviation Safety Office
• EVA — Extra-Vehicular Activity
• A&E — Architectural and Engineering
• ALT — approach and landing test
• ILS — Instituteument Landing System
• DCASR-LA — Defense Contract Administration Services Region, Los Angeles
• ESRO — European Space Research Organisation
• AA — Airplane Avionics
• BMO — Ballistic Missile Office
• MEWG — Maintenance Engineering Working Group
• CAA — Civil Aeronautics Administration
• IRM — Information Resources Management
• L&D — Landing And Deceleration
• MAN — Microwave Aerospace Navigation
• AOM — acoustic-optic modulator
• ROSAT — Roentgen Satellite
• MLG — Main Landing Gear
• MGE — Maintenance Ground Equipment
• IRDS — Information Resource Dictionary System
• ADL — Ada Design Language
• AET — Aerosurface End-to-end Test
• CCIR — International Radio Consultative Committee (French Acronym)
• MOL — Manned Orbital Laboratory
• AMI — Alpha/Mach Indicator
• ASD — advanced systems development
• CHL — Certified Hardware List
• CPAF — Cost Plus Award Fee (Type of Contract)
• EDCC — Engineering Drawing Control Center
• AFSC — Air Force Systems Command
• SLOC — Source Lines Of Code
• FDAI — Flight Director Attitude Indicator
• CTCI — Contract Technical Compliance Inspection
• EPS — Electrical Power Subsystem
• STS — Synchronous Transport Signal
• ASTRA — Advanced Star Tracker
• DEMUX — Demultiplexer
• CFP — Conceptual Flight Profile
• ATU — Audio Terminal Unit
• ACME — Attitude Control and Maneuvering Electronics
• ACA — Attitude Controller Assembly

• ACPL — Assembly Component Parts List
• CZCS — Coastal Zone Color Scanner
• ABL — aircraft-based laser
• CDID — Contract Data Item Description
• KSCAP — Kennedy Space Center Area Permit
• ABMCP — airborne military command post
• LSSL — Life Sciences Space Laboratory
• AFD — Assistant Flight Director
• DP&S — data processing and software
• OSSE — Oriented Scintillation Spectrometer Experiment
• ACPS — Attitude Control Propulsion System
• OP — Operational
• CVD — Chemical Vapor Deposition
• LWG — Logistics Working Group
• AEM — Acoustical Emission Monitoring
• MP&C — Maintenance Planning And Control
• AFDE — Aft Flight Deck Equipment
• DADS — Dual Air Density Satellite
• LOI — Lunar Orbit Insertion
• ALSSW — ALS software
• AUTODIN — Automatic Digital Network
• MIPS — Merritt Island Press Site
• ADFRF — Ames/Dryden Flight Research Facility
• APA — Abort Programmer Assembly
• AO — Analog Output
• ALL — Airborne Laser Laboratory
• DVM — Digital Voltmeter
• LSMDB — logistics simulation models and data bases
• NPR — National Performance Review (office)
• APCA — Aft Power Controller Assembly
• MMDS — Maintenance Management Data System
• ASEA — American Society of Engineers and Architects
• DDC — Direct Digital Control
• BASD — Ball Aerospace Systems Division
• CIDL — Configuration Item Data List
• CNWDI — Critical Nuclear Weapons Design Information
• FTPF — Flight and Training Planning Facility
• JOC — joint operations center; joint oversight committee
• FU — Flight Unit
• CAP — Corrective Action Plan
• AM — Ante Meridiem
• NPD — NASA Policy Directive
• CARDE — Canadian Armament Research and Development Establishment
• KOH — potassium hydroxide
• LCC — Launch Commit Criteria
• JFET — junction field effect transistor
• AMLS — Advanced Manned Launch System
• ASI — Airspeed Indicator
• SDF — Software Development Facility
• BMS — Background Measurement Satellite

• ABCL — as-built configuration list
• GSR — Galvanic Skin Response
• FED — Flight Events Demonstration
• EIDP — end item data package
• CLS — Contingency Landing Site(s)
• ATCO — Ambient Temperature Catalytic Oxidizer
• CAB — Civil Aeronautics Board
• ACEL — Air Crew Equipment Laboratory
• ACM — Acquisition Control Module
• A/S — Ascent Stage
• AGCU — Attitude Gyro Coupling Unit
• AFCSC — Air Force Cryptologic Support Center
• ATA — Avionics Test Article
• CA — Carrier Aircraft
• AMS — Acoustic Measurement System
• STK — Satellite Tool Kit
• AFC — Aerodynamic Flight Control
• SPF — Software Production Facility
• MMACS — Maintenance Management and Control System
• DOMSAT — Domestic Satellite
• EPM — Engineering Project Manager
• DOP — Detailed Operating Procedure
• ADI — Attitude director indicator
• AMCA — Aft Motor Controller Assembly
• SSP — Space Shuttle Program
• FOD — Flight Operations Directorate
• EOS — Earth Observing System (U.S.)
• AFS — Ascent Flight System
• ASPP — Atmospheric and Space Plasma Physics
• BFO — Beat Frequency Oscillator
• JO — Job Order
• AFSCN — Air Force Space Command network
• ADB — Aerodynamic Data Book
• ACIP — Aerodynamic Coefficient Identification Package
• GB — Gigabit
• AFAL — Air Force Astronautics Laboratory
• ACUO — Avionics Cooling Unit Operator
• FSO — Facility Security Officer
• LMSS — Lunar Mapping and Survey System
• ABM — Advance Bill of Materials
• AFFTC — Air Force Flight Test Center
• ISCCB — Internal Software Change Control Board
• FAFS — Falcon Air Force Station
• ARIA — Advanced Range Instrumentation Aircraft
• AFT — Aerodynamic Flight Test
• A&S — Alignment and Stabilization
• EEEU — End Effector Electronics Unit
• ACN — Ascension Island
• AFWL — Air Force Weapons Laboratory
• A-G — Air-to-Ground

• CB — Control Board
• CSMA/CD/TS — carrier sense multiple access/collision dlot
• IPLS — Initial Program Load Start
• ATC — Aircraft Target Computer
• AIST — Agency Of Industrial Science And Technology (Japan)
• DP/DT — Delta Pressure/delta Time
• ASAC — aerodynamic surfaces assembly and checkout
• FAB — Flight Assignment Baseline
• ARU — Attitude Reference Unit
• AICP — Aerodynamic Instrumental Coefficient Package
• ADCS — Attitude Determination and Control Subsystem
• CAM — Civil Aeronautics Manual
• ATH — Above the Horizon
• AMO — Aerospace Medical Operations
• AVCS — Attitude and Velocity Control System
• MTB — Materials Testing Branch
• AOT — Avionics Overall Test
• MOM — Mission Operations Manager
• FDOR — Flight Design Operations Review
• ATL — Avionics Test Laboratory
• ASA — Advanced System Avionics
• AMI — airspeed/Mach indicator
• AIDE — Aerospace Installation Diagnostic Equipment
• DPSK — Differential Phase Shift Keying
• ASKA — Automatic System for Kinematic Analysis
• LQR — Linear Quadratic Regulator
• AGAA — Attitude Gyro Accelerometer Assembly
• CSTA — Crew Software Training Aid
• IFR — Instrument Flight Rules
• ESE — Earth Science Enterprise
• ASE — Aerospace Support Equipment
• CCR — Contract Change Request
• CRO — Cathode-Ray Oscilloscope
• CMOS — Complementary Metal Oxide Semiconductors
• FHST — fixed-head star tracker
• AMS — Aeronautical Material Specification
• AM — Aeromedical Monitor
• INASSB — indium-arsenide-antimonide
• CD — current density
• AFSC — Air Force Space Command
• FCTS — Flight Crew Trainer Simulator
• SA — Single Access
• LDIU — Launch Data Interface Unit
• AA — air-to-air
• ATAC — Advanced Technology Advisory Committee
• NIR — Near Infrared
• GFY — Government Fiscal Year
• FMO — Flight Medical Officer
• DPSD — Data Processing Systems Division
• DCMA — Defense Contract Management Agency

• ASN — Average Sample Number
• ASRM — Abort Solid Rocket Motor
• FHF — First Horizontal Flight
• CPIC — Computer Program Integration Contract
• CC — Carbon-Carbon
• FCOD — Flight Crew Operations Directorate
• CDD — Common Data Dictionary
• AD — Associate Director
• ASTE — American Society of Tool Engineers
• MON — Monitor
• CRC — Communications Research Centre Canada
• BSME — Bachelor of Science degree in mechanical engineering
• ISO — Information Systems Office
• FRR — Flight Readiness Review
• IMLEO — Initial Mass in Low Earth Orbit
• AGREE — Advisory Group in Reliability of Electronic Equipment
• BRL — Ballistic Research Laboratory
• AD — Advanced Development
• FDRI — Flight Director Rate Indicator
• IRAS — Infrared Astronomy Satellite
• ASRM — Advanced Solid Rocket Motor
• CASS — Consolidated Automated Support System
• CAPS — Common Attitude Pointing System
• COFW — Certificate of Flight Worthiness
• ABLE — Airborne Laser Evaluation
• AML — Approved Materials List
• ICBM — Intercontinental Ballistic Missile
• EDS — Earth Departure Stage
• ISSA — Integrated Software Safety Analysis
• FFTO — Free-Flying Teleoperator
• BMEWS — Ballistic Missile Early Warning System (bee-mews)
• AVL — Avionics Verification Laboratory
• AFMTC — Air Force Missile Test Center
• EGO — Eccentric Geophysical Observation
• UMA — University of Massachusetts Amherst
• LHS — left-hand side
• BAI — Barometric Altitude Indicator
• EDAC — Error Detection And Correction
• CAM — Computer-Aided Manufacturing
• APRF — Army Pulse Radiation Facility
• ST — Space Telescope
• FRDR — Flight Readiness Design Review
• FCEF — Flight Crew Equipment Facility (At KSC)
• MAPTIS — Materials and Processes Technical Information System
• ACEU — AeroControl Electronics Unit
• FEWG — Flight Evaluation Working Group
• ALSA — astronaut life support assembly
• CAD — Computer-Aided Dispatch
• MSVP — Master Shuttle Verification Plan
• BMO — Business Management Office

• COF — CONSTRUCTION OF FACILITIES
• AMFL — Aeromedical Field Laboratory
• AOA — American Ordnance Association
• MS/MS — Material Science and Manufacturing in Space
• ABETS — airborne beacon test set
• ESCA — photoelectron spectroscopy for chemical analysis
• E/D — edge distance
• FFM — free-flying module
• AMPR — aeronautical manufacturer's planning report
• FEDP — Facility and Equipment Design Plan
• MILS — Missile Impact Location System
• AAE — Aerospace Auxiliary Equipment
• G/T — ratio of antenna gain to receiver noise temperature
• ATDP — Aircraft Target Data Program
• FQI — Flight Qualification Instrumentation
• ADMS — Automated Data Management System
• FIA — Flight Integration Assessment
• ABD — Airborne Ballistics Division
• ADAP — Automated Data Analysis Program
• CDMS — contractor data management system
• ASR — Air-Sea Rescue
• APAS — Aerodynamic Performance and Sizing Program
• IHA — Interface Hazard Analysis
• DTIC — (U.S.) Defense Technical Information Center
• BIS — Bureau of Industry and Security
• TM — Thematic Mapper (Landsat)
• A/A — analog-to-analog
• DNC — Direct Numerical Control
• ASCP — Attitude Set Control Panel
• BAC — Booster Assembly Contractor
• APM — Assistant Project Manager
• CAM — Carrier Aircraft Modification
• ILA — Instrument Landing Approach
• FRG — Federal Republic of Germany's
• AOT — Avionics Operating Time
• AFSD — Air Force Space Division
• MODART — method of defeating advanced radar threats
• AIU — Avionics Interface Unit
• CRPL — Cosmic Ray Physics Laboratory
• AFDR — Ascent Flight Design Review
• FCIM — Flight Control Interface Module
• ATR — Air Transport Radio
• FCIP — Flight Cargo Implementation Plan
• CMB — Configuration Management Board
• HLLV — Heavy-Lift Launch Vehicle
• CI — Configuration Item
• ACD — Architectural Control Document
• AUB — Aft Utility Bridge
• BAC — Boeing Aircraft Company
• CALST — Cornell Aeronautical Laboratory Shock Tunnel

• ANT — Antigua and Barbuda
• GIBIS — Graphical Issue-Based Information System
• DODISS — Department of Defense Index of Specifications and Standards
• LRA — Laser Retroreflector Array
• HCI — hardness-critical item
• ECRA — Engineering Change Request Authorization
• AECS — Area Entry Control System
• CE/CK — computer entry/control keyboard
• ADAP — Aerodynamic Data Analysis Program
• ALTS — Avionics LRU Tracking System
• BESS — Biomedical Experiment Support Satellite
• FIMS — Framework for Integrated Manufacturing System
• EOI — Earth Orbit Insertion
• C2 — Command and Control Class C2
• RTLS — Return To Launch Site
• FLAPS — Flight Application Software
• ABM — Acquisition Bus Monitor
• AOQ — Average Outgoing Quality
• AGC — Aerojet General Corporation
• BCR — Budget Change Request
• BOL — Beginning of Life
• HSI — Horizontal Situation Indicator
• TBR — To Be Resolved
• AMK — Aircraft Modification Kit
• DAIS — Data Avionics Information System
• DFRF — Dryden Flight Research Facility
• AFR — Air Force Regulation
• CMN — Contract Master Network
• FCSM — Flight Combustion Stability Monitor
• IONET — Internet Protocol Operational Network
• CBIL — common and bulk items list
• FOT — Flight Operation Trainer
• DDAS — Digital Data Acquisition System
• MPRAS — multipath redundant avionics suite
• ASI — Augmented Spark Igniter
• GDS — Ground Data System
• ADI — Attitude Display Indicator
• ASCS — Attitude Stabilization and Control System
• ASAS — Aerodynamic Stability Augmentation System
• ISTP — International Solar Terrestrial Physics
• BIB — Blocked Impurity Band
• DITMCO — Drive-In Theater Manufacturing Company's wire harness insulation analyzer
• AILS — Automatic Instrument Landing System
• MAGSAT — Magnetometer Satellite
• AFSPACECOM — Air Force Space Command
• GBR — Ground-Based Radar
• DAM — Double-Aluminized Mylar
• FCD — Flight Control Division
• IDOS — Integrated Display Operating System
• SOE — Sequence Of Events

• ASTG — Aerospace Test Group
• EDF — Engineering Data File
• AFOSH — Air Force Occupational Safety and Health
• ICSU — International Council of Scientific Unions
• CAB — Corrective Action Board
• CE — Chief Engineer
• CCS — Central Control Station
• AP — Administrative Procedure
• GTAW — gas tungsten arc welding
• US — Upper Stage
• IDWA — Interdivisional Work Authorization
• FIIG — Federal Item Identification Guide
• AFGE — American Federation of Government Employees
• EPOC — External Payload Operations Center
• ESSC — Engineering Support Services Contract
• FCCP — Firm Contract Cost ProPosal
• AVE — Aerospace Vehicle Equipment
• EMCI — Engineering Model Configuration Inspection
• AIR — Action Item Report
• ADS — Air Data System
• CDRS — Contract Data Requirements Schedule
• CAL — Cornell Aeronautical Laboratory
• CLAES — Cryogenic Limb Array Etalon Spectrometer
• ASG — Avionic Subsystems Group
• BOC — Base Operations Contract
• LOLI — limited-operational-life items
• ASP — Aerosurface Position
• BOW — Bill of Work
• LACB — Landing Aids Control Building (SLF At KSC)
• ADAC — Attitude Determination and Control
• ASSESS — Airborne Science Shuttle Experiments System Simulation
• APM — Ascent Particle Monitor
• ASED — Avionics System Engineering Division
• AFFDL — Air Force Flight Dynamics Laboratory
• DAA — Designated Approval Authority
• AES — Analog Event System
• HBT — Heflex Bioengineering Test
• CTF — Commit To Flight
• CC — Contract Completion
• SV — Schedule Variance
• CCU — Camera Control Unit
• AA — American Airlines
• GRE — Gamma Ray Explorer
• FCSD — Flight Crew Support Division
• B/P — blood pressure
• ARIS — Advanced Range Instrumentation Ship
• ALC — Automatic Light Control
• AFSRT — avionics flight systems readiness test
• CDC — Control Data Corporation, Incorporated
• AID — Abbreviated Item Description

• EORQ — engineering order request for quotation
• APCP — Aerojet Photoelectric Cell Program
• FRCI — Fibrous Refractory Composite Insulation
• ATCS — Active Thermal Control System/Subsystem
• AR — Acceptance Review
• AGARD — Advisory Group for Aeronautical Research and Development
• CAIT — Computer-Aided Instruction Terminal
• A/B — Airborne
• ERO — Engineering Release Operation
• A/G — air-to-ground
• ADL — Advanced Development Laboratory
• ABC — Automatic Brightness Control
• JAS — Journal of Aerospace Science
• AR — Antireflection
• ASTRO — Ascent Trajectory Optimization
• ATDAP — aircraft target data acquisition program
• A/N — account name
• A/O — Analog Output
• AFTA — Acoustic Fatigue Test Article
• API — Air Position Indicator
• AEM — Arsenal Exchange Model
• AMAL — Aeronautical Medical Acceleration Laboratory
• MCD — Minimum Cost Design
• AA — Angular Accelerometer
• FASCOS — Flight Acceleration Safety Cutoff System
• AR — Anomaly Report
• DWS — Disaster Warning Satellite
• LVO — Launch Vehicle Operations
• APA — Allowance for Program Adjustment
• EFA — Experiment Flight Application
• APU — Auxiliary Propulsion Unit
• BI — Background Information
• AFI — Automatic Fault Isolation
• IOP — Intensive Observing Period
• BMAG — Body-Mounted Attitude Gyro
• CCN — Contract Change Negotiation
• SAREX — Shuttle Amateur Radio Experiment
• DSIS — Defense Satellite Information System
• AAA — Astronaut-Actuated Abort
• MLGS — Microwave Landing Guidance System
• EDIV — Engineering Design Intent Verification
• AMTF — Acoustic Model Test Facility
• AOS — Advanced Orbiting System
• CCA — Contract Change Authority
• AILAS — Automatic Instrument Landing Approach System
• AA — Antiaircraft Artillery
• EEM — Earth Entry Module
• ACB — air-cushion barge
• FMCF — First Manned Captive Flight
• FFR — Flight Feasibility Review

• ATOS — Automated Technical Order System
• FWB — Fahrenheit Wet Bulb
• KBSA — Knowledge-Based Software Assistant
• ABPS — air-breathing propulsion system
• ATL — Advanced Technology Laboratories
• EXMATCH — expert drawing matching system
• ASE — Advanced Space Engine
• ASTF — Aeropropulsion System Test Facility
• MSME — Master of Science degree in mechanical engineering
• ANARS — autonomous navigation and attitude reference system
• FPV — Flow Proportioning Valve
• ADS — Attitude Display System
• FPR — Flight Performance Reserve
• CLSO — Contingency Landing Support Officer
• CASE — Computer-Aided System Engineering
• GSDL — Ground Software Development Laboratory
• LVFRR — launch vehicle flight readiness review
• ISCM — Initial Software Configuration Map
• ASC — Aerodynamic Surface Control
• AFAL — Air Force Avionics Laboratory
• DTV&I — development, test, verification, and integration
• FFBD — Functional Flow Block Diagram
• ASR — Avionic System Review
• DSS — Deep Space Station
• AECS — Automated Entry Control System
• NMI — Nautical Mile
• LVIP — Launch Vehicle Integration Plan
• JAN — Joint Army-Navy
• IPACS — integrated power and attitude control system
• PAO — Public Affairs Officer
• IMS — Integrated Master Schedule
• LOWG — Landing Operations Working Group
• AAMP — Advanced Architecture Microprocessor
• MSLD — Mass Spectrometer Leak Detector
• ASPI — Aerosurface Position Indicator
• FTVE — functional technology validation experiment
• FIT — Fault Isolation Test
• ACL — Ascent Closed Loop
• AFD — Acceptance For Data
• BF — Beat Frequency
• CCR — Contractor Change Review
• ERAP — Earth Resources Aircraft Program
• FVV — Facility Verification Vehicle
• AFSWC — Air Force Special Weapons Center
• FAWG — Flight Assignment Working Group
• EEPROM — electrically erasable read-only memory
• EHS — environmental health services
• EDTS — Electronic Data Transfer System
• CAB — Civil Aviation Board
• ESRIN — European Space Research Institute

• BA — Breathing Air
• ALS — Alternative Landing Site
• BMD — Ballistic Missile Defense; Boyevaya Mashina Desantika (Russian: airborne combat vehicle)
• SW — Space Wing
• GET — Ground Elapsed Time
• MAEP — Minimum Autoland Entry Point
• TM — Technical Memorandum
• AFTS — Aft Fuselage Thrust Structure
• E&O — engineering and operations
• FSW — Flight Software
• ATR — Air Transport Rating
• CCO — Contract Change Order
• AMG — Activation Management Group
• ASA — Aerosurface Amplifier
• AMOOS — Advanced Maneuvering Orbit-to-Orbit Shuttle
• AB — Airborne
• BOPACE — Boeing Plastic Analysis Capability for Engines
• AVCOR — algorithm vibration correlation
• LME — Launch Monitor Equipment
• DMIS — Data Management Information System
• LBTPP — launch base test plan/procedure
• ACSN — Advance Change/Study Notice
• LAGS — Launch Abort Guide Simulation
• AER — Atomic Energy Research
• BWO — Backward Wave Oscillator
• IQSY — International Quiet Sun Year
• AIS — Action Item Sheet
• FIE — Flight Instrumentation Engineer
• GLAADS — Gun Low-Altitude Air Defense System
• FCHL — Flight Control Hydraulics Laboratory
• M&R — Maintenance and Refurbishment
• AB — Airborne Bombing
• DBIU — Data Bus Interface Unit
• ASTD — Advanced Space Technology Division
• LG — Landing Gear
• LAIU — Launch Abort Interface Unit
• AAE — Abort Advisory Equipment
• FCOB — Flight Crew Operations Branch
• FD/FI — Fault Detection/Fault Isolation
• CAIT — Computer-Aided Instruction Trainer
• ACES — Automatic Checkout Equipment Sequencer
• AACCS — Analytical Approach to Candidate Constellation Selection
• ART — Automated Reasoning Tool
• FTIS — Flight Test Instrumentation System
• AP — Autopilot
• MIL-STD — Military Standard
• DCASR — Defense Contract Administration Services Region
• COF — Columbus Orbital Facility
• ABERT — Auto Bit Error Rate Test
• A/A — airplane avionics

• LULAC — League of United Latin American Citizens
• LON — Launch on Need
• A/S — arm/safe
• AME — Abort Maneuver Evaluator
• HRI — High Resolution Imager
• IRBM — Intermediate-range ballistic missile
• CCW — Counterclockwise
• COIM — checkout interpreter module
• AAO — Astronaut Activities Office
• DD&R — data display and review
• CMAG — Cruise Missile Advanced Guidance
• GLP — Goal Language Processor
• RADARSAT — Radar Satellite
• JCS — Joint Chiefs of Staff
• ESOC — European Space Operations Center
• AMOS — Air Force Maui optical site
• FEPC — Flight Equipment Processing Contractor
• KATS — Ksc Avionics Test Set
• CPCEI — Computer Program Contract End Item
• GOCO — government-owned, contractor-operated (US)
• CDRR — Contract Documentation Requirements Records
• BPR — Bypass Ratio
• TOGA — Tropical Ocean Global Atmosphere
• AOD — Assistant Operations Director
• ME&D — manufacturing engineering and development
• WAD — Work Authorization Document
• ISB — Independent Side Band
• AGL — Absolute Ground Level
• CTV — Compatibility Test Van
• CCS — Contract Control System
• ATCA — attitude translation control assembly
• CA — Contract Advice
• BESS — Biomedical Experiment Scientific Satellite
• KEE — knowledge engineering environment
• GMAW — Gas Metal Arc Welding
• DII — Defense Industry Initiative
• AG — Attitude Gyro
• JTSC — Joint Test Support Center
• FESP — Flight Execution Support Plan
• FDP — Flight Design Panel
• AED — Analog Event Distributor
• DCSU — Digital Computer Switching Unit
• AID — Analog Input Differential
• CDF — Confined Detonating Fuse
• CAL — Contract Advice Letter
• LLP — Launch and Landing Project
• LSPDF — Life Science Payload Development Facility
• BUFC — Backup Flight Controller
• SAIL — Shuttle Avionics Integration Laboratory (JSC)
• C/W — Carrier Wave

• LCC — Launch Control Complex
• FRFT — Flight Readiness Firing Test
• AI — Associate Investigator
• EEU — Extravehicular Excursion Unit
• CRL — Countermeasure Readiness Level
• ATDB — Aerothermodynamic Data Book
• ARTO — Advanced Radiation Technology Office
• FOST — Flight Operations SUPPOrt Team
• AFF — Acceptance and Ferry Flight
• F&M — Force and moment
• COMAS — Combined Orbital Maneuvering and Abort System
• ATV — Automated Transfer Vehicle
• FOSA — Flight Operations Support Annex
• ATLAS — Abbreviated Test Language for Avionic Systems
• FEO — Field Engineering Order
• CMAO — Contract Management Assistance Officer
• SM — Service Module
• KDS — Kennedy-Developed Software
• IOF — Initial Operational Flight
• FRRID — Flight Readiness Review Item DisPosition
• MLC — Mobile Launcher Computer
• EDCP — Engineering Design Change Proposal
• A/L — Airlock
• FDCF — Flight Design Control Facility
• ERIM — Environmental Research Institute of Michigan
• AGO — Santiago, Chile Tracking Station
• AFL — Astrobiology Field Laboratory
• ISIL — interim support items list
• ASDE — Aerosurface Driver Electronics
• GN — Ground Network
• TM — Technical Monitor
• DECNET — Digital Equipment Corporation Network
• AEC — Aft End Cone
• LFV — Lunar Flying Vehicle
• A/F — Air-to-Fuel ratio
• SSO — Space Shuttle Orbiter
• ASTS — Avionic System Test Specification
• A/R — autoland roll-out
• ALSE — Astronaut Life Support Equipment
• ADPF — Automated Data Processing Facility
• FKB — flight display keyboard
• FCAF — Flight Crew Accommodation Facility
• KAPL — KSC Approved Parts List
• AA — Antiaircraft
• IPLC — Initial Program Load Complete
• LPS — Launch Processing System
• FBAS — fixed-base aft station
• CA — Cone Angle
• NF — Noise Figure
• GBS — ground-based software

• FCTR — Flight Controller Training Room
• FSN — Federal Stock Number (now NSN)
• NMC — Network Management Center
• JURG — Joint Users Requirements Group
• ABCR — As-Built Configuration Record
• ALFA — Air-Lubricated Free Attitude
• ACU — Annunciator Control Unit
• CND — Cannot Duplicate
• JAEIC — Joint Atomic Energy Intelligence Committee
• AVC — Automatic Volume Control
• ARS — Air Rescue Service
• IOA — Input/Output Adapter
• ABLOS — Algorithm Beam Line of Sight
• NSI — NASA Science Internet
• PMB — Performance Measurement Baseline
• ASDM — Aerosurface Driver/Monitor
• ITDR — Integrated Technology and Design Review
• AF — Award Fee
• FRCS — Forward Reaction Control System (Subsystem)
• ASO — Australian Space Office
• A/S — acquisition sensor
• PI — Principle Investigator
• CCAS — Cape Canaveral Air Station
• AED — Aerospace Electrical Division
• MLE — Mesoscale Lightning Experiment
• FOE — Flight Operations Engineer
• AJ — Assembly Jig
• ADU — Annunciator Display Unit
• ATP — Acceptance Test Program
• ARCOMSAT — Arab League communications satellite
• AOA — Abort Once Around (shuttle Abort Plan)
• AGN&C — advanced guidance, navigation, and control
• ACMB — Applications Configuration Management Board
• MOF — Manned Orbital Flight
• ALVIB — algorithm payload vibration
• KOM — KSC Organizational Manual
• AFP — Air Force Plant
• LRB — Liquid Rocket Booster
• LGA — Low Gain Antenna
• GEC — General Electrodynamics Corporation
• CX — Constellation
• IBF — Internally Blown Flap
• APIRD — authorized procurement information requirements
• ATVCS — automatic thrust vector control system
• LCCD — Launch Commit Criteria Document
• AQL — Acceptance Quality Level
• CPPS — Computer Program Product Specification
• ATVC — Automatic Thrust Vector Control
• ETR — Eastern Test Range (ESME Preferred)
• LLCSC — low-level computer software component

• AFSIG — Ascent Flight System Integration Group
• ACCN — Audit Central Control Network
• FBB — Flyback Booster
• ADSF — Automatic Directional Solidification Furnace
• ADS — Audio Distribution System
• AMY — ADA Management Yield
• AFWPAL — Air Force Wright-Patterson Aeropropulsion Laboratory
• AOS — Airborne Optical System
• ALCC — Airborne Launch Control Center
• MRR — Mission Readiness Review
• AMIC — Automated Management Information Center
• CAD — Computer-Aided Drawing
• FOH — First-Order Hold
• CBB — Contract Budget Baseline
• ADAM — Automated Distributed Architecture Model
• HQR — Handling Qualities Rating (Cooper-Harper)
• BN — Bullnose
• ASAPTS — automated scheduling and product tracking system
• LETF — Launch Equipment Test Facility
• FMAHTS — Flight Manifest and Hardware Tracking System
• AGCS — Automatic Ground Control Station
• ALDO — Activity-Level-Dependent Operation
• FIRSSE — Far Infrared Sky Survey Experiment
• HDR — High Data Rate
• KATE — Knowledge-based Autonomous Test Engineer
• HABP — Hypersonic Arbitrary Body Program
• FTS — Federal Telecommunications System
• FOPG — Flight Operations Planning Group
• GEO — Geosynchronous Earth Orbit
• LEV — Lunar Excursion Vehicle
• ATS — Administrative Terminal System
• DVE — Design Verification Experiment
• MACO — Major Assembly Checkout
• ATI — Average Total Inspection
• EIAT — end item acceptance test
• AGS — Abort Guidance System
• AAMRAM — air-to-air medium-range missile
• AMCR — Automated Master Change Record
• EORSAT — Electronic Ocean Reconstruction Satellite
• HDTV — High-Definition Television
• LUPI — Laser Unequal Path Interferometer
• AAA — allocations, assessments, and analysis
• MSO — Mission Support Officer
• HG — High Gain
• HMCF — Hypergolic Maintenance and Checkout Facility
• ACO — assembly checkout
• AEB — Aft Equipment Bay
• ATVC — Ascent Thrust Vector Control
• A/S — auxiliary stage
• EAROM — Electrically Alterable Read-Only Memory

• ACCU — Audio Central Control Unit
• AET — Algorithm Evaluation and Test
• APC — Aft Power Controller
• DGZ — Desired Ground Zero
• AFML — Air Force Materials Laboratory
• UPS — User Planning System
• ALU — arithmetic/logic unit
• CC — Channel Controller
• G&A — General and Administrative Overhead
• AH — Attitude Hold
• CAS — Cooperative Application Satellite
• AUTO-BF — automatic body flap
• A/F — airframe
• ASO — Astronomical Search for Origins
• LRF — Liquid Rocket Fuel
• AFMDC — Air Force Missile Development Center
• ASTM — American Society for Testing Materials
• ABCF — As-Built Configuration File
• ATC — Assistant Test Conductor
• FQ — Flight Qualification
• BOE — Break of Entry
• AADS — Ascent Air Data System
• FIAB — Flight Integration Assessment BOard
• AEC — American Engineering Council
• EVO — Engineering Verification Order
• EDLS — Engineering Drawing Library System
• ACSU — Alternating-Current Switching Unit
• FOPS — Flight Operations Planning Schedule
• ABT — Air-Bearing Table
• MFTAD — Master Flight Test Assignment Document (JSC)
• LSTE — Launch Site Transportation Equipment
• AFTOC — Air Force Tactical Operations Center
• AMC — Automatic Mixture Control
• CCE — Computer Command Engineer
• MODS — Military Orbital Development System
• CC — Cluster Controller
• DTF — Development Test Facility
• EM&IAS — electromechanical and integrated avionics subsystem
• BSU — Bowie State University
• FEDB — Flight Execution Data Base
• ALRUTS — Automated Line Replaceable Unit Tracking System
• FRF — Flight Readiness Firing
• LBR — Low Bit Rate
• CMOS/SOS — complementary metal oxide semiconductor/silicon
• LOAD — Low-Altitude Defense
• ARFDS — automatic reentry flight dynamics simulator
• HPICS — heat pipe instrumentation and control system
• KCAS — Knots Calibrated Airspeed
• ATE — Aerospace Training Equipment
• CFAE — contractor-furnished airborne equipment

• ALDC — Automatic Load and Drive Control
• ATDRP — aircraft target data reduction program
• CATS — Change Action Tracking System
• AGAP — attitude gyro accelerometer package
• AIM — Automatic Information Management
• ITMG — Integrated Thermal/Micrometeoroid Garment
• G/A/G — ground to air to ground
• ADPL — As-Designed Parts List
• ALPS — Advanced Liquid Propulsion System
• ARS — Air Revitalization System
• CC — Color Code
• MSO — Manufacturing Safety Office
• ACS — Attitude Control and Stabilization
• AFP — Advanced Flexible Processor
• EMM — Electromechanical Mockup
• MEDS — Mechanical Engineering Design System
• CDSF — Commercially Developed Space Facility
• AF — Airframe
• ACRC — Assured Crew Return Capability
• FAMOS — Flight Acceleration Monitor System
• ADD — Architecture Definition Document
• AID — Action Item Disposition
• ACCS — Adaptive Communication Control Subsystem
• CPDDS — Computer Program Detail Design Specification
• CM — Command Module
• C/C — Combustion Chamber
• EODRS — Earth observation data retrieval system
• FOSO — Flight Operations Scheduling Officer
• APD — Area Passive Dosimeter
• JED — Julian Ephemeris Date
• BRS — Bottom Right Side
• AI — Airspeed Indicator
• L&L — Launch And Landing
• TRR — Test Readiness Review
• ACTS — Acquisition Coarse Tracker Subsystem
• AAS — Abort Advisory System
• JSTARS — Joint Surveillance and Target Attack Radar System
• AA/AL — airplane avionics/autoland
• ECOS — Experiment Computer Operating System
• FCITE — FCI time element
• IAT — Integrated Avionics Test
• CDA — Critical Design Audit
• MAIL — Mockup and Integration Laboratory
• ACM — Auxiliary Core Memory
• BP — Base Plate
• LUT — Launch Umbilical Tower
• EOPF — End of Powered Flight
• DISCO — Defense Industrial Security Clearance Office
• MMA — Moving Mechanical Assembly
• ALRC — Aerojet Liquid Rocket Company

• C/O — Cutoff
• APOD — Astronomy Picture of the Day
• AFWTR — Air Force Western Test Range
• ALCM — Air-Launched Cruise Missile
• OD — Orbit Determination
• EMES — electrical, mechanical, and environmental systems
• HGCDTE — Mercury-Cadmium-Telluride
• ACRV — Assured Crew Return Vehicle
• AICS — Action Item Closeout Sheet
• AA/AL — automatic approach/autoland
• DOAMS — distant-object attitude-measuring system
• OLA — Operating Level Agreement
• AETL — Approved Engineering Test Laboratory
• FQF — First Qualification Flight
• ASSE — American Society of Sanitary Engineers
• CATS — Correspondence Action Tracking System
• EGORD — Experiment Ground Operations Requirements Document
• CI — Composite Index
• NSC — Norwegian Space Center
• ACES — Acceptance Control Equipment Section
• ERCM — Engineering Requirements and Change Management
• ARC — aggregation of red blood cells
• DIPEC — Defense Industrial Plant Equipment Center
• EWM — Engineering Wring-out Meeting
• AC — Accomplishment Criteria
• A/J — antijam
• ALSYM — ALS model
• APAE — attached payload accommodations equipment
• IOU — Input/Output Unit
• C&W — Caution and Warning
• AGL — Above-Ground Link
• FMT — Flight Management Team
• BMO — Ballistic Missile Organization
• AFSTC — Air Force Satellite Test Center
• BOI — Break of Integrity
• AGT — Adaptive Guidance Throttling
• ADH — Advanced Development Hardware
• EMPGS — Electromechanical Power Generation Subsystem
• ACL — Allowable Container Load
• IVSI — Instantaneous Vertical Speed Indicator
• IRANSAT — Iranian Government Communications Satellite
• ACES — Acceptance Checkout and Evaluation System
• AHM — Automatic Hold Mode
• APLAC — Analysis Program Linear Active Circuit
• ATP — acquisition, tracking, and pointing
• VC — Viet Cong
• MEP — Management Education Program
• ADP — Astrophysics Data Program
• MSSTM — military space system technology model
• KHIT — KKV hovering interceptor test

• AE — architectural and engineering
• AEC — Aft Events Controller
• ASP — Attached Shuttle Payload
• LLPO — Launch and Landing Project Office
• CPEI — Computer Program End Item
• DBN — Data Bus Network
• MLGD — Main Landing Gear Door
• ALS — Ada Language System
• KPD — KSC Program Directive
• FRP — Fuselage Reference Plane
• ABA — dc amplifier, buffer, and attenuator
• EOCR — Engineering Order Control Record
• BARS — Baseline Accounting and Reporting System
• LSID — Launch Sequence and Interlock Document
• COSATI — Committee On Scientific And Technical Information
• AMCM — Advanced Missions Cost Model
• KSSS — KSC Station Set Specification
• AM — Airlock Module
• FMA — Failure Mode Analysis
• IPAD — Integrated Program For Aerospace Vehicle Design
• ASM — air-to-surface missile
• CPIF/AF — cost plus incentive fee/award fee
• EOPAP — Earth and Ocean Physics Application Program
• BTH — Below the Horizon
• GDR — Geophysical Data Record
• AGCA — Automatic Ground-Controlled Approach
• ADPS — Acceptance Data Package System
• ISL — Inertial Systems Laboratory
• GRO — Gamma Ray Observatory (NASA)
• FUT — Flight Unit Test
• ASVIB — algorithm scoreboard vibrations
• AADR — Applications Approval Design Review
• ALV — Advanced Launch Vehicle
• MBAC — Marshall Booster Assembly Contractor
• ADSA — alternate demonstration structural article
• G-A — Ground to Air
• ALSS — Advanced Life Support System
• AMC — Army Missile Command
• MSOB — Manned Spacecraft Operations Building
• JPOC — JSC Payload Operations Center
• LSAH — Launch Site Accommodations Handbook
• ARES — Advanced Railroad Electronic System
• IFTS — In-Flight Test System
• GAPL — Group Assembly Parts List
• ADU — Ascent Driver Unit
• AFE — Aeroassist Flight Experiment
• ATE — Airborne Test Equipment
• ALB — Acceptance Log Book
• AMIS — Acquisition Management Information System
• AGE — Automatic Ground Equipment

• ADACS — Attitude Determination And Control System
• AFWAL — Air Force Weapons Analysis Laboratory
• NPP — NPOESS Preparatory Project
• AISD — Autonetics ICBM Systems Division
• ARN — Additional Reference Number
• AGS — antigravity suit
• ILSWG — Integrated Logistics Support Working Group
• ADIC — Air Defense Intelligence Center
• BUOU — Backup Optical Unit
• CU — Configuration Unit
• BOC — blowout coil
• ASCOP — Applied Science Corporation of Princeton
• CORE — Common Operational Research Equipment
• MPM — Manipulator Positioning Mechanism
• HSE — Heat Shield Entry
• CA — Completion of Assembly
• A/M — auto/manual
• ACIL — Automatic Controlled Instrument Landing
• LET — Linear Energy Transfer (in Spacecraft Power Systems)
• ERRP — Equipment Replacement and Refurbishment Plan
• CCTCF — communication circuit technical control facility
• FHC — flight half-coupling
• HPBW — half-power beam width
• ALSS — Airlock Support System
• ACMA — Army Class Managing Activity
• CDQ — certificate of qualification
• FM/FM — Frequency Modulation/Frequency Multiplexing
• FIIN — Federal Item Identification Number
• ARP — As-Run Procedure
• AMCC — ADL Master Control Console
• M50 — Aries mean of 1950, Cartesian coordinates
• EVM — Earth-viewing module
• FPH — Flight Procedures Handbook
• ARPESH — accurate and reliable prototype Earth sensor head
• AMMM — Autonomous Magnetic Momentum Management
• ADTA — Air Data Transducer Assembly
• ARCS — Aft Reaction Control Subsystem
• CD — Coefficient of Drag
• ACRS — Advisory Committee on Reactor Safeguards
• ACC — Aft Cargo Compartment
• A/FM — arm firing mechanism
• FTOH — Flight Test Operations Handbook
• CMV — Common Mode Voltage
• SA — System Administrator
• CWBS — Contract Work Breakdown Structure
• AB — Air Bearing
• EDLN — Engineering DeveloPment Logic Network
• AOT — Actual Operating Time
• CTV — Crew Transfer Vehicle
• FCDR — Final Critical Design Review

• ACLS — automated control and landing system
• MSFN — Manned Space Flight Network
• CDF — Central Data Facility
• EMN — Engineering Management Network
• AFSA — Air Force study and analysis
• ADA — Azimuth Drive Assembly
• ARTSE — Ada run-time support environment
• ACCE — Augmented Continuous Control Evaluator
• AFEB — Award Fee Evaluation Board
• CDC — Countdown Clock
• ESU — Eyepiece Storage Unit
• ACCESS — Assembly Concept For Construction Of Erectable Space
• EUROCOMSAT — European consortium communications satellite
• HYPACE — Hybrid Programmable Attitude Control Electronics
• CWE — Caution and Warning Electronics
• ALASAT — Air-Launched Antisatellite
• EBL — Eyeballs Left ( GY)
• AFETR — Air Force Eastern Test Range
• CISS — Centaur Integrated Support Structure
• GSVP — Ground Support Verification Plan
• AV — Audiovisual
• MM&TS — master manufacturing and test schedule
• DAF — Data Analysis Facility
• EPD&C — Electrical Power Distribution and Control
• MGSE — Mechanical Ground Support Equipment
• AMW — Angular Momentum Wheel
• CSCSAT — Commercial Synchronous Communication Satellite
• LDEC — Lunar Docking Events Controller
• MSBLS — microwave scan-beam landing system
• BCU — Battery Control Unit
• ASRE — American Society of Refrigerating Engineers
• BSGE — Bachelor of Science degree in general engineering
• FSDU — Frequency Synthesizer and Distribution Unit
• AB — Airborne Brigade's
• HEO — High Earth Orbit
• AHR — Ablative Heat Rate
• AFEC — Award Fee Evaluation Committee
• AC — Atmospheric Corrector
• FOGM — Fiber-Optic Guided Missile
• AFFTC/RPL — Air Force Flight Test Center/Rocket Propulsion
• FUSE — Far Ultraviolet Spectroscopy Explorer
• DTCW — Data Transfer Command Word
• ACDNS — attitude control, determination, and navigation
• MRIR — medium-resolution infrared radiometer
• DA — Data Administrator
• AIU — Abort Interface Unit
• HAR — Hazard Analysis Report
• ADS — Air Data Sensor
• FSAA — Flight Simulator for Advanced Aircraft
• LMSC — Lockheed Missiles and Space Corporation

• ABCAS — Algorithm Beam Center And Shape
• PM — Post Meridiem
• ASRC — Arctic Slope Regional Corporation
• EMWA — Engineering Minor Work Authorization
• FSD&P — flight systems design and performance
• MPVA — Main Propellant Valve Actuator
• AGI — Agreement Item
• IGY — International Geophysical Year (1 July 1957 - 31 December 1958)
• MFCS — Manual Flight Control System
• DCN — Document Change Notice
• EPDS — Electrical Power Distribution System
• ARIES — Astronomical Radio Interferometric Earth Surveying
• CCBD — Configuration Control Board Directive
• EMK — Emergency Medical Kit
• BFL — Back Focal Length
• LPIF — Launch Package Integration Facility
• ARMA — Accumulator-Reservoir Manifold Assembly
• AFWSG — Air Force Weapons System Group
• ACTA — Activate Test Article
• AWAA — attack warning and attack assessment
• AFSTC — Air Force Space Technology Command
• AFRSI — Advanced Flexible Reusable Surface Insulation
• CCP — Contract Change Proposal
• ER — Equipment Room
• G/S — Glide Slope
• ALCA — automatic level-control assembly
• AFSCF — Air Force Systems Command Facility
• FCPS — Fuel Cell Power System (Subsystem)
• JSCM — JSC Manual
• APDL — Ada programming design language
• FOIH — Flight Operations Integration Handbook
• FBM — fleet ballistic missile submarine
• AP — Accelerometer Package
• AEDS — Analog Event Distribution System
• FOWG — Flight Operations Working Group
• DPM — Deputy Program Manager
• DS&R — Data Storage and Retrieval
• SRB — Solid Rocket Boosters
• FVF — First Vertical Flight
• ADF — Automatic Display Finder
• GR/EP — graphite-epoxy
• EHOT — external hydrogen/oxygen tank
• ICAAD — interactive computer-aided analysis and design
• ASC — American Satellite Corporation
• BUSHIPS — Bureau of Ships, Washington, DC
• APM — Associate Program Manager
• DK — Display Keyboard
• AOD — Analog Output Differential
• FPRV — flight product requirements verification
• GAEC — Grumman Aircraft Engineering Corporation

• LOSP — Landing Operations Support Panel
• AR — Atmospheric Revitalization
• CAS — Column Address Strobe
• D&P — Drain and Purge
• IHSR — Integrated Hardware/Software Review
• LCH4 — liquid methane
• AKA — Active Keel Actuator
• ARTS — Automated Retrieval and Tracking System
• BSI — Basic Shipping Instruction
• ALE — Airport Lighting Equipment
• AFPC — Air Force Program Control
• CRISP — Computer Resources Integrated Support Plan
• AFBMD — Air Force Ballistic Missile Division
• ARAP — Astronaut Rescue Air Pack
• IORL — Input/Output Requirements Language
• C-C — Carbon-Carbon
• AFM — Arm/Firing Mechanism
• AFSCF — Air Force Space Command Facility
• ACS — Automated Control System
• HVI — High-Velocity Impact
• SR — Support Requirements
• AGOSS — Automated Ground Operations Scheduling System
• ALE — Airborne Laser Experiment
• LRCA — Long-Range Combat Aircraft
• HANE — High-Altitude Nuclear Explosion
• APSAP — auxiliary propulsion system aft pod
• AP — air pressure
• ARS — Atmospheric Revitalization System
• ALPS — Approach and Landing Procedures Simulator
• FSED — full-scale engineering development (US)
• TRK — Track
• AFPD — Authorization for Program Development
• AHI — Artificial Horizon Indicator
• ACC — Auxiliary Crew Compartment
• CL — Confidence Level
• FPSR — Flight Planning and Stowage Review
• C&T — Communication and Tracking
• AMRF — Automated Manufacturing Research Facility
• GL — Government Leased
• BPMS — Blood Pressure Measuring System
• APC — Adaptive Payload Carrier
• FSIWG — Flight System Interface Working Group
• AFSCS — Air Force Satellite Communications System
• ARD — Abort Region Determinator
• BDY — burst detector optical sensor
• AFPR — Air Force Plant Representative
• ABM — Antiballistic Missile
• DABS — Discrete Address Beacon System
• CMA — China Meteorological Administration
• GBSS — Ground-Based Surveillance System

• FISA — Facility Inspection Shakedown Acceptance
• INDAT — incoming data
• ALCOA — Aluminum Corporation Of America
• AFETRM — Air Force Eastern Test Range Manual
• AERO — Aeroballistics
• BMDSCOM — Ballistic Missile Defense Systems Command
• SR — Service Request
• FM/CW — frequency-modulated continuous wave
• ICWG — Interface Control Working Group
• PSS — Portable Spacecraft Simulator
• BCD — Baseline Concept Definition
• AFSSD — Air Force Space Systems Division
• ATO — Automatic Turn-On
• CADDS — computer-aided design and drafting system
• AUASAM — Automatic Aimpoint Selection And Maintenance
• GPU — Ground Power Unit
• ATVCD — Ascent Thrust Vector Control Driver
• ASCE — Airlock Signal Conditioning Electronics
• EVDE — external visual display equipment
• CDH — Constant Delta Height
• I&Q — in phase and quadrature
• APO — Automated Purchase Order
• IACS — Inertial Attitude Control System
• GDSM — Ground Data Systems Manager
• C&P — Contracts and Pricing
• ANRA — Air Navigation Radio Aid
• CCDR — Contractor Critical Design Review
• ESV — Emergency Shutoff Valve
• ELB — Electrical Load Bank
• ICBC — Imax Cargo Bay Camera
• CWEU — Caution and Warning Electronics Unit
• ACO — acceptance checkout
• AFESD — Air Force Electronic Systems Division
• C/O — Changeout
• AWACS — Advanced Warning and Control System
• AFTA — Aft Frame Tilt Actuator
• BDT — Block Data Transfer
• AFO — Abort From Orbit
• AAS — Advanced Antenna System
• GSPF — Ground Software Production Facility
• AN — Alphanumeric
• AMG — Angle of the Middle Gimbal
• KBAC — Kennedy Booster Assembly Contractor
• APUS — Auxiliary Power Unit Subsystem
• DAE — Data Acquisition Equipment
• CCP — Computer Control Panel
• ABMO — Antiballistic Missile Office
• ACD — Accuracy Control Document
• GTLV — government-furnished target launch vehicle
• MER — Mission Evaluation Room

• APSE — Ada programming support environment
• BP — Back Pressure
• COQ — Certificate Of Qualification
• ADRL — Automatic Drawing Release List
• KPRD — KSC Program Requirements Document
• ETB — Equipment Transfer Bag
• LLO — Low Lunar Orbit
• ADAES — advanced data assessment expert system
• GSP-R — guidance signal processor-repeater
• CRERS — crew rescue and equipment retrieval system
• FOMR — Flight Operations Management Room
• WP — Working Party
• BIC — Bus Interface Controller
• ALCA — Aft Load Controller Assembly
• APK — accelerometer package
• ARMS — Automated Requirements Management System
• AAP — analog autopilot
• BECO — Booster Engine Cutoff
• AIST — Abbreviated Integration System Test
• F-F — face-to-face
• ALFT — Approach and Landing Flight Test
• BCE — Bus Control Element
• LARSSYAA — Laboratory for Application of Remote Sensing Aircraft Analysis
• ACRES — automated change request and evaluation system
• FTS — Federal Telephone System
• C-C — center-to-center
• DMO — Data Management Office
• LASV — low-altitude supersonic vehicle
• FMD&C — flight mechanics, dynamics, and control
• AMBD — automated maintenance data base
• ATPG — Automatic Test Program Generator
• EICD — Experiment Interface Control Document
• EVD — External Visual Display
• AOCP — ac on-board computer program
• IFOT — In-Flight Operations And Training
• TDRS — Tracking and Data Relay Satellites
• ATLAS — analysis of thrust structure loads and stresses
• DOC — Data Operations Control
• IV&V — Independent Validation and Verification
• HUL — Hardware Utilization List
• NHB — NASA Handbook
• CCC — Central Computer Complex
• AHS — Aft Heat Shield
• HFT — Horizontal Flight Test
• CADU — Control And Display Unit
• GEODSS — ground-based electro-optical deep-space surveillance
• AZEL — azimuth and elevation
• AC — Auxiliary Computer
• CCE — Continuous Control Evaluator
• GDP — Generalized Documentation Processor

• AICC — Action Item Control Card
• CAR — Corrective Action Report
• APTI — Actions Per Time Interval
• AID — Audit Item Disposition
• LSSRC — Life Sciences Shuttle Research Centrifuge
• AMC — Aft Motor Controller
• AOT — Alignment Optical Telescope
• AOFEE — advanced orbiter flight evaluation experiment
• AFPM — Air Force program manager
• DDDS — Digital Data Distribution System
• FSD — Flight Simulation Division (JSC)
• AGCU — air/ground cooling unit
• FMP — Facility Management Plan
• CUT — Coordinated Universal Time
• C/A — code standard positioning service
• FO-FS — fail operational/fail safe
• ACF — American Car and Foundry
• EDSC — Early Deployment System Concept
• HF/DF — Hydrogen Fluoride/Deuterium Fluoride
• BDD — Baseline Definition Document
• AF/IN — Air Force/Intelligence
• DEDA — Data Entry and Display Assembly
• ETPY — electronic control assembly thrust vector pitch and yaw
• GETL — Ground Elapsed Time of Landing
• EDL — Engineering Development Laboratory
• AOP — Assembly Operations Plan
• LACI — Laser Autostigmatic Cube Interferometer
• ASC — Airlock Support Component
• ANI — Authorized, Not Implemented
• LAM — Liquid Apogee Motor
• PCD — Process Control Document  
• ER — Eastern Range
• CM&S — Communications Maintenance and Storage
• AI — altitude indicator
• ASRS — Automated Shuttle Requirement System
• BSR — Bite Status Register
• AOCRD — acceptance and operational checkout requirements
• ABTCU — active baseplate thermal control unit
• AMDS — Advanced Missions Docking System
• ALSGEM — ALS global evaluation module
• L/O — Lift-off
• IFU — Interface Unit
• MSFP — Manned Space Flight Program
• ANC — Active Nutation Control
• PIN — Product Identification Number
• ASTB — AGN&C Simulation Test Bed
• ATP-FC — acquisition, tracking, and pointing fire control
• AIP — Avionics Integration Plan
• PDL — Ponce de Leon
• CAP — Control Account Plan

• ACSN — Advance Change Schedule Notice
• ASSD — Autonetics Strategic Systems Division
• BAC — Budget At Completion
• IPTR — in-process technical review
• ARIS — ALS Requirements Information System
• AVRCS — attitude, velocity, reaction control system
• HICAMP — Highly Calibrated Airborne Measurements Program
• CPSD — cross-power spectral density
• FSRS — Flight System Recording System
• PPS — Precise Positioning System
• BR — Bit Rate
• ILSMT — Integrated Logistics Support Management Team
• HILS — hardware-in-the-loop simulation
• HR&T — heat rejection and transport
• BPI — Boost Phase Intercept
• AFSIE — Air Force standard items and equipment
• ATS — Automatic Terminal System
• HCP — Hydraulic Circulation Pump
• GADG — Gravity or Acceleration Due to Gravity
• ATTS — Automatic Telemetry Tracking System
• FLPS — Flight Load Planning System
• ARN — action and reply notice
• AFT — Active Fine Tracker
• GIRD — Ground Integration Requirements Document
• GCI — ground-controlled interception
• APIF — Automated Process Information File
• ASSO — Assistant System Security Officer
• ASCS — Atmosphere Storage and Control Subsystem
• ADB — auxiliary memory data output bus
• ASA — Abort Sensor Assembly
• ACLC — Adaptive Communication Live Controller
• MIMS — Medical Information Management System
• EID — End Item Documentation
• ATC — Active Thermal Control
• ASF — Atmospheric Science Facility
• CBP — Connector Bracket Power
• ABC — Ada browse capability
• DPD — Data Procurement Document
• ATS — Automatic Test Set
• AL — Autoland
• ADS — Angular Displacement Sensor
• MITIL — MIT Instrumentation Laboratory
• ASCS — Atmospheric Storage and Control Section
• ADP — Acceptance Documentation Package
• DU — Display Unit
• ASB — Airlock Stowage Bag
• LASERCOM — laser communications payload
• FOPSS — flight operation product scheduling system
• ADPA — Air Data Probe Assembly
• EP — Equivalent Person

• ARAP — Aeronautical Research Associates of Princeton
• ARTS — Automated Restricted Tracking System
• AMPD — Applied Materials Physics Division
• AIOD — Ascent Insertion On-Orbit Deorbit
• C&D — communication and data
• ATS — Atlantic Tracking Station
• CWFSP — Caution and Warning/Fire Suppression Panel
• FLSC — flexible linear-shaped charge
• CUB — Commonality Usage Board
• AT — Action Time
• INR — Inertial Reference
• CYI — Canary Islands
• ADT — Air Data Transfer
• HBW — Hot Bridge Wire
• APES — Advanced Processor Emulator System
• AEOP — Adaptive Electro-Optical Processor
• CASO — Cancellation Addendum Sales Order
• BTE — Bench Test Equipment
• ACE — Automatic Checkout Equipment
• AMEU — Alpha/Mach Indicator Electronic Unit
• AMX — AM Transmitter-Receiver
• AC — Advanced Composite
• FLR — Flight Log Recorder
• APPS — Auxiliary Payload Power System
• ID&CS — ID&C subsystem
• IT&V — Integrated Test and Verification
• DPAS — Defense Priorities and Allocation System
• EPDC — Electrical Power Distribution and Control
• AHCS — Advanced Helicopter Control System
• GIDS — General-purpose Interactive Display System
• NSC — Network Systems Corporation
• GME — Gimbal Module Electronics
• DRRD — Design Requirements Review Disposition
• AMAL — Aviation Medical Acceleration Laboratory
• NM — New Millennium
• EIU — Engine Interface Unit
• KDD — Knowledge Discovery and Data Mining
• FMOFEV — First Manned Orbital Flight With EVA
• ESG — Executive Steering Group
• EDPC — Electronic Data Processing Center
• ACN — Acceptance Change Notice
• EPDU — Electrical Power Distribution Unit
• FEAT — Final Engineering Acceptance Test
• FIV — Fuel Isolation Valve
• ACV — air-cushion vehicle
• MEE — Mission-Essential Equipment
• CBA — C-Band Transponder Antenna
• CCF — Central Computer Facility
• MML — master measurement list
• HFTF — Horizontal Flight Test Facility

• BATSE — Burst and Transient Source Experiment
• EGRET — Energetic Gamma Ray Explorer Telescope
• ASAT — Antisatellite
• MALT — Model Assembly List Transmittal
• AMSC — advanced military space flight capability
• ASFTS — auxiliary system function test stand
• EAI — Electronics Associates, Incorporated
• SDO — Solar Dynamics Observatory
• AMPM — Agency Planning Manifeset
• EBC — Emulated Buffer Computer
• CML — Commands and Measurement List
• AFTP — Air Force test procedure
• LDC — Lot Date Code
• MOI — moments of inertia
• FPU — floating-point unit
• DD&CS — Dedicated Display and Control Subsystem
• AOPM — Airline Operations Planning Model
• ALSEMP — ALS Engineering Management Plan
• G/A — ground to air
• ALERT — Acute Launch Emergency Reliability Tip
• AFATL — Air Force Armaments Test Laboratory
• ALASS — Alternate Low-Altitude Surveillance System
• APGC — Air Proving Ground Command
• EPGCS — electrical power generation and control subsystem
• APT — Astronaut Preference Test
• AVE — Atmospheric Variability Experiment
• CWS — Caution and Warning System
• CMRB — Contractor Material Review Board
• EHA — electrohydraulic actuator
• ADA — Adaptive Diagnostic Authoring
• AMPM — Agency Mission Planning Model
• APP — Advance Procurement Package
• MIEWF — master integrated engineering work file
• AS/CP — attitude set/control panel
• ILAS — Instrument Landing Approach System
• LRO — Lunar Reconnaissance Orbiter
• AFAD — Armed Forces Acquisition Document
• USN — United Space Network
• AJCS — Automated Job Card System
• ATC/FTD — Air Training Command/Field Training Detachment
• APA — Antenna Pointing Assembly
• AESOP — an easy system of programming
• CPFF/IF — cost plus fixed fee/incentive fee
• LEC — Lockheed Electronics Company
• ITVE — Integrated Technology Validation Experiment
• MBFP — Manufacturing Build and Flow Plan
• BTC — Bus Tie Contractor
• ASRS — Automated Support Requirements System
• AFSLV — Air Force space launch vehicle
• IBT — International Brotherhood of Teamsters

• CCD — Checkout Command Decoder
• AMDCS — assurance management document control system
• D/VD — Data/Voice Data
• ATIS — Automatic Terminal Information System
• AWG — Activation Working Group
• FSY — Factor of Safety Yield
• CCL — Critical Characteristics List
• ATPA — Alpha Temperature Probe Assembly
• AOL — Area Of Launch
• ACC — advanced carbon-carbon
• WMAP — Wilkinson Microwave Anisotropy Probe
• BV — Boost Vehicle
• ANC — Air Force-Navy-civil
• KKV — Kinetic Kill Vehicle
• ASFT — Abbreviated System Functional Test
• HFCT — Hydraulic Flight Control Test
• HIM — Hardware Interface Module
• BA — Bank Angle
• FACC — Ford Aerospace and Communications Corporation
• CAPSS — Computer-Aided Planning and Scheduling System
• DBP — Design Baseline Program
• AB — Airborne Battlefield
• APSS — Atmospheric Pressure Supply Subsystem
• LISA — Laser Inferometer Space Antenna
• CCIM — Command Computer Input Multiplexer
• GFERD — government-furnished equipment requirement description
• ATC — Ablative Thrust Control
• PD — Program Directive
• AFS — Air Force Standard
• FPB — Fuel Preburner
• BCRD — Basic Consolidated Requirements Document
• BSA — bus status/alternate bus table
• LMIF — Lower Mechanical Integration Frame
• ATPSE — acquisition, tracking, and pointing system emulator
• CCAS — Contractor Cost Accrual System
• AL-LI — aluminum lithium
• BOP — Baseline Operations Plan
• CDB — Command Data Base
• CETF — Critical Evaluation Task Force
• AF/DBS — areal fluid data base system
• AMF — Abort Motor Facility
• INSB — Indium Antimonide
• AI — Anti-Icing
• FSSE — Flight Sensor Stimuli Equipment
• AD — Air Density
• ASPSL — ASPP Sortie Laboratory
• P2P — Point-To-Point
• ICG — In-Flight Coverall Garment
• ATA — Assembly Test Article
• RID — Review Item Disposition

• AISTR — advanced interferometric system technology requirement
• CBE — Connector Bracket Experiment
• ATS — Administrative Telephone System
• ILRV — Integral Launch and Reentry Vehicle
• APPF — Automated Payload Processing Facility
• EVSU — Extravehicular Space Unit
• FSLP — First Spacelab Payload
• APS — Attitude Propulsion System
• GTF — Ground Test Facility
• ACT — Acquisition Coarse Tracker
• ASSH — Advanced Space Systems Hardening
• ADS — Attitude Determination Subsystem
• ATDF — Automated Test Development Folder
• DIGIKON — digital control analysis software
• IFTM — in-flight test and maintenance
• FPR — Federal Procurement Regulation
• ADP — Architecture Decision Point
• ARS — ALS Release System
• POLAR — Polar Plasma Laboratory
• DAS — Data Archive System
• AFEV — Air Force experiment vehicle
• HERT — Headquarters Emergency Relocation Team
• CITS — Central Integrated Test System
• KU — Keyboard Unit
• EPPSS — electrical power/pyro sequential system
• ASI — Amended Shipping Instructions
• ASST — American Society for Steel Treating
• ATRS — Automated Training Records System
• BSTS — Boost Surveillance Tracking System
• GTE — General Telephone and Electronics
• AFWAL/ML — Air Force Wright Aeronautical Lals Laboratory
• CARB — Central Acquisition Review Board
• ADABECS — airborne demonstration advanced beam extraction am
• EFCS — Earth-fixed coordinate system
• IAV — Inventory Adjustment Voucher
• DIPS — Dynamic Isotope Power System
• HFTS — Horizontal Flight Test Simulator
• IOCU — Input/Output Control Unit
• C&DS — Command and Data Simulator
• AFSATCOM — Air Force satellite communication(s)
• BAIR — Breathing Air
• GPD — Gimbal Position Display
• BP — Boilerplate
• CGP — Central Grounding Point
• ACT — acquisition, control, and test
• AMTAS — automatic modal tuning and analysis system
• C/A — Coarse Acquisition
• EDPM — Electronic Data Processing Machine
• GGVM — gas generator valve module
• ALC — Aft Load Controller

• CCF — Converter Compressor Facility
• ADPSSM — ADP system security monitor
• FCU — Fluid Checkout Unit
• LHA — Local Hour Angle
• FSPL — free-space-path loss
• H&K — Homing and Kill
• ARTS — Advanced Remote Tracking Station
• AES — Advanced Electrical Schematic
• CAA — Cost Account Authorization
• G-G — ground to ground
• GSIF — Ground Station Interface Facility
• C/SCSC — cost and schedule control system criteria
• C&C — command and control (also C2)
• FMK — Field Modification Kit
• APN — ACE Problem Notice
• HIGED — Handbook of Instructions for Ground Equipment Designers
• DF/CMB — data formatter and command monitor bus
• ELC — Earth Limb Clutter
• ATS — Analog Tone Signal
• AMR — Area-to-Mass Ratio
• AFP — Ariane-Furnished Property
• ABJIT — algorithm beam jitter
• ASTIA — Armed Services Technical Information Agency
• BCD — Budget Change Document
• CDB — Central Data Buffer
• AIST — Advanced Interferometric System Technology
• ANA — Air Force-Navy aeronautical bulletin
• DDCS — Data Distribution and Command System
• DLH — Direct Labor Hour
• BRAVO — Business Risk and Value of Operation in Space
• CSO — Complex Safety Office
• ATOLL — Acceptance Test of Launch Language
• ASLU — Antenna Select Logic Unit
• DESHE — distributed expert system hosting environment
• CELSS — Controlled Ecological Life Support System
• FDU — Fluid Distribution Unit
• CCSR — Carbon-Carbon Survivable Radiator
• DPCL — dedicated payload communication link
• ASPS — annular suspension and pointing system
• AO — Acoustic-Optical
• GDDM — Graphical Data Display Manager
• ADS — Advisory and Directive System
• EVCU — Extravehicular Communications Umbilical
• CDBFR — Common Data Buffer
• CDF — Circuit Design Fabrication
• EVAS — Extravehicular Activity System
• BMDATC — Ballistic Missile Defense Advanced Technology Center
• ARQ — Automatic Request
• CDPIS — Command Data Processing and Instrumentation System
• AIR — Adaptive Intercommunication Requirement

• CDQR — Critical Design and Qualification Review
• BB — Breadboard
• CETA — Crew and Equipment Translation Aid
• LFA — logistics/functional analysis
• APUT — Auxiliary Power Unit Test
• LAC — Lockheed Aircraft Corporation
• H/C — head count
• IHP — Indicated Horsepower
• DPT — Design Proof Test
• ACE — Array Combining Experiment
• CCM — Crew/Cargo Module
• ASPR — armed service procurement regulation
• ATS — Assembly Trusses and Structure
• CAS — Command Augmentation System
• APS — Auxiliary Propulsion System
• ETL — Environmental Test Laboratory
• GDCA — General Dynamics Convair Aircraft
• AMT — Auxiliary Master Tape
• HTO — Horizontal Takeoff
• AMS — actuation mechanism subsystem
• F&D — Fill and Drain
• CSAT — Combined Systems Acceptance Test
• DDPS — Digital Data Processing System
• AC — Assembly Complete
• ATM — Ascent Trajectory Model
• DR&A — Data Requirements and Analysis
• C/O — Contamination/Overpressure
• BD — Binary Digit
• GSEL — Ground Support Equipment List
• ASE — Automatic Support Equipment
• AP — atmospheric and space physics
• FACS — Finance and Control System
• DRAT — Data Requirements Analysis Tool
• DCIB — Data Communication Input Buffer
• COGMAN — center of gravity of payload manifest
• FCW — Format Control Words
• DCAR — Design Corrective Action Report
• BCE — Backup Control Electronics
• GSBCA — General Services Board of Contract Appeals
• C&C — communication and control
• KTF — Kauai Test Facility
• DSARC — Defense System Acquisition Review Committee
• ACD — Anti-Carryover Device
• BCLS — Base Cardiac Life Support
• CFI — Card Format Identifier
• BSR — Basic System Release
• MAR — Mission Analysis Room
• C&TS — Communications and Tracking System
• EURECA — European Retrievable Carrier
• GDSD — Ground Data Systems Division

• CWT — Code Walk-Through
• CD&SC — Central Distribution and Switching Center
• BPT — Body Point
• CDUM — coupling display unit IMU
• EIT — Entry Interface Time
• ASDTIC — analog-signal-to-discrete-time-interval converter
• CDR — Conceptual Design Review
• AGE — air/ground equipment
• MAR — Multiple Access Return
• DECA — display/AGAP electronic control assembly
• CVF — Circular Variable Filter
• DDPF — Dedicated Display Processing Function
• ATT — acceptance thermal testing
• AMS — Antenna Management System
• ASAP — Advanced Sensor Analysis Program
• ALOSA — algorithm line-of-sight angle
• CD — Countdown
• L&C — Laboratory And Checkout
• MLF — MDM Launch Forward
• FPPR — Fixed Price with Price Revision
• AMC — Air Material Command
• ATTACK — advanced threat technology attack coordination and
• CSN — Customer Source Number
• AGOES — Advanced Geosynchronous Observation Environment Satellite
• EDPE — Electronic Data Processing Equipment
• APE — Arithmetic Processing Extension
• MPICD — mission-peculiar interface control document
• EHC — Electrical Heating Control
• BTR — Bus Transfer
• ATM — Apollo Telescope Mount (on Skylab)
• CNRL — Communications and Navigation Research Laboratory
• ARPCS — Atmospheric Revitalization Pressure Control System
• ATA — Abort Time Assembly
• MHC — Manipulator Hand Controller
• AMSD — Autonetics Marine Systems Division
• APS — Automated Planning System
• LSG — Linear Sequence Generator
• B/L — Baseline
• AMF — apogee memory image
• CAAT — Computer-Aided Assembly Tool
• ADCOM — air defense command
• CWEA — Caution and Warning Electronic Assembly
• FRDI — Flight Research and Development Instrumentation
• AMTD — Automatic Magnetic Tape Dissemination
• EPDCS — Electrical Power Distribution and Control System
• FSSS — Future Strategic Systems Study
• AIS — Airlock Illumination Subassembly
• ISDC — International Space Development Conference
• BTU — Bus Terminal Unit
• DAF — Data Archive Facility

• IDMRS — intermediate depot maintenance requirements
• B/O — Breakout
• DAAT — Distributed Architecture Analysis Tool
• ATS — Atlantic Tracking Ship
• G&NS — guidance and navigation system
• CC — Cost Center
• BDCR — Baseline Document Change Request
• C/S — Cost/Schedule
• AC — Application Controller
• DRA — Document Release Authorization
• EMSP — Enhanced Modular Signal Processor
• FUO — Follow-up Output
• FACR — first-article configuration review
• GOSS — Ground Operational Support System
• CCS — Central Control Section
• BMFT — German D-1 Spacelab Payload
• ALERT — Acute Launch Emergency Restraint Tip
• IAA — International Aerospace Abstracts
• CCMS — checkout, control, and monitor subsystem
• CMRR — Common Mode Rejection Ration
• AMPTE — Active Magnetospheric Particle Tracer Explorer
• CM — Crew Module
• AMLC — asynchronous multiline controller
• CMRS — Configuration Management Requirements Standard
• CDF — Combined Data File
• BIBIB — back-illuminated blocked impurity band
• APPLE — advanced propulsion payload effect
• LEFM — Linear Elasticity Fracture Mechanics
• F&A — Fabrication and Assembly
• CCA — communications carrier assembly
• AI — Altimeter Indicator
• SNR — Signal Noise Ratio
• AOPL — Advance Order Parts List
• CSDM — Computer System Diagnostic Manual
• HEDI — High Endoatmospheric Defense Interceptor
• ARRS — air recovery and rescue service
• ASC — auxiliary switch normally closed
• PSM — Procurement Strategy Meeting
• ABS — air-break switch
• HCRB — Hardware Configuration Review Board
• FMDM — flexible multiplexer/demultiplexer
• C&D — controls and displays
• ARSDA — Advanced Radiation Space Defense Application
• HSV — hypersonic vehicle
• E/W — energy-to-weight ratio
• COTS — Commercial Orbital Transportation System
• APS — Aft Propulsion System
• C-TO-C — computer-to-computer
• COSPAC — cost/schedule planning and control
• BB — Baseband signal

• DLAT — Destructive Lot Acceptance Testing
• SAC — Senate Appropriations Committee
• GEOSEPS — Geosynchronous Solar Electric Propulsion Stage
• GPVS — General-Purpose Visual Simulator
• CGAU — Cabin Gas Analysis Unit
• CDG — Concept Development Group
• NCO — National Coordination Office
• IUCS — Instrumentation Update Command System
• AFP888 — designation for P80-1 spacecraft
• G/T — Gain to Noise Temperature Ratio
• ETV — Electrical Test Vehicle
• DDCS — Document and Data Control System
• CFT — cross-functional team
• ATA — Aft Test Article
• CCRF — Consolidated Communication Recording Facility
• B&P — Budgetary and Planning
• CDAS — Core Design Analysis Simulation
• BD — Binary Decoder
• CCT — computer-compatible tape
• BSW — BFS software
• C&DP — control and data processor
• MEECN — Minimum Essential Emergency Communication Network
• MEB — main electronics box
• GFS — Government-Furnished Software
• EOQ — End of Quarter
• ARAR — Accident Risk Assessment Report
• BU&C/O — buildup and checkout
• LPI — Low Probability of Intercept
• ATP — Advanced Technical Payroll
• CITE — cargo integration test equipment
• ASGPD — attitude set and gimbal position display
• CAP — Competitive Access Provider
• ICAM — integrated computer-aided manufacturing
• CHR — Cooper-Harper Rating
• DCO — Detailed Checkout
• UPN — Universal Product Number
• APWL — Automatically Processed Wire List
• BF — Body Flap
• JPASO — Joint Pacific Area Scheduling Office
• ETT — Estimated Time Of Track
• GPAS — general-purpose airborne simulator
• MBK — Medications and Bandage Kit
• MBE — Minority Business Enterprise
• DBUR — Data Bank Update Request
• DPDM — differential pulse-duration modulation
• DSMC — Data Services Management Complex
• HEL — High-Energy Laser (US)
• ESS — Engineering Support System
• BRM — Biological Research Module
• DBE — Data Bus Element

• DLR — Deutschen Zentrum fur Luft und Raumfahrt
• DER — Drawing Error Report
• JIC — Job Instruction Card
• ALCOM — Algorithm Line-Of-Sight Comparison
• GSERD — Ground Support Equipment Recommendation Data
• ASTP — Apollo-Soyuz Test Project
• L-L — Line-to-Line
• AES — Atmosphere Exchange System
• JOR — Job Order Request
• CTRS — Component Test Requirements Specifications
• AR — Acceptance Readiness
• CCS — Command and Communication System
• EDS — Edit and Decommutation System
• APS — Ascent Propulsion System
• BDW — burst detector EMP sensor
• IMAS — Institutional Management Accounting System
• CMDB — Configuration Management Data Base
• EGC — Experiment Ground Computer
• APR — Advance Parts Release
• ELDV — Electrically Operated Depressurization Valve
• BCU — Bus Control Unit
• DCL — Document Change List
• MITTS — Mobile Igor Tracking Telescope System
• BNS — Bomb Navigation System
• IGN&C — integrated guidance, navigation, and control
• DASD — direct-access storage device
• MDU — mission data unit
• AOSP — Advanced On-Board Signal Processor
• ICRB — Interface Change Review Board
• CC — Closing Coil
• IOM — Input/Output Module
• D&C — displays and controls
• COLA — cost-of-living adjustment/allowance
• CCR — Control Center Rack
• APC — Airborne Particle Counter
• DHE — Data Handling Equipment
• LS/ST — Light Shield/Star Tracker
• BFC — Body Flap Control
• CCCD — Crew Compartment Configuration Drawing
• CDN — CDR Discrepancy Notice
• CARR — Customer Acceptance Readiness Review
• AETB — alumina-enhanced thermal barrier
• CAPS — Crew Activity Planning System
• AMI — Apogee Memory Image
• DAFT — Data Acquisition Frequency Table
• MFBP — Manufacturing Flow And Build Plan
• DTMO — Development, Test, and Mission Operations
• CCME — Contract Change Mass Estimate
• ATOP — ADA Technology Operational Planning
• ARA — Auxiliary Recovery Antenna

• AVT — Acceptance Vibration Testing
• SIP — Summer Internship Program
• CCZ — Command and Control Zone
• BC — Broadcast
• DRI — Data Rate Indicator
• DD&RR — Data Display and Review Room
• COSTA — Cost Accounting (Code)
• B/M — bench maintenance
• FH — Flex Hose
• CAU — Customer Acquisition Unit
• CADS — Command and Data Simulator
• CBW — Constant Bandwidth
• EEP — Electronic Equipment Package
• GE-AESD — General Electric Aerospace Electronics Systems
• IMO — Integration Management Officer
• CSSE — Control System Simulation Equipment
• AOIS — Automatic Optical Inspection System
• COB — Communications Office Building
• DCASMA — Defense Contract Administration Services Management Area
• GPIO — general-purpose input and output
• EBU — Eyeballs Up (-GZ)
• DES — Data Enhancement System
• FLTSATCOM — fleet satellite communications
• CICC — Cargo Integration Control Center
• ELN — Digital Equipment Corporation's real-time operating sn
• CCSD — Chrysler Corporation Space Division
• BSM — Booster Separation Motor
• COMM — Communications Module
• APTE — Automated Production Test Equipment
• CAP — Capability Assurance Program
• EO — Engineering Office
• CRW — Control Read/Write
• DUA — Digital Uplink Assembly
• FOG — Fiber-Optic Gyro
• C/SC — cost/schedule control
• DTRD — Development Test Requirements Document
• FACI — first-article configuration inspection
• DCEA — Digital Control Electronics Assembly
• CC — Convolutional Coding
• ADS — Ascent Design System
• AMS — Amplifier Subsystem
• APIRL — authorized procurement information requirements list
• E/P — electron/proton
• MOPIS — missile operations intercommunications system
• BMAS — Body-Mounted Accelerometer System
• AES — American Electroplaters Society
• FRSI — Felt Reusable Surface Insulation
• FDSCU — fluid distribution system control unit
• DAPS — Decommutation And Processing System
• HPPF — Horizontal Payloads Processing Facility

• APP — Approach Astrophysics Payload
• AS&ASD — Autonetics Sensors and Aircraft Systems Division
• GCO — Ground Checkout
• IDU — Interface Demonstration Unit
• GN&C — Guidance, Navigation, and Control
• EEH — EMU electrical harness
• CB — Center of Buoyancy
• ICDU — Inertial Coupling Data Unit
• BDA — Backup Drive Amplifier
• ALIO — Activity-Level-Independent Operation
• HX — Heat Exchanger
• PRD — Program Requirements Documents (UDS)
• ASI — Augmented Spark Indicator
• FPSS — fine-pointing sun sensor
• DBRN — Data Bank Release Notice
• LHSC — Left-Hand Side Console
• I/C — Intercommunications
• C/D — Countdown
• FCSTF — Fuel Cell System Test Facility
• HBBW — half-beam bandwidth
• HEMIL — hardware evaluator, man in loop
• KSA — Ku-band Single Access
• CADE — controller/attitude direct electronics
• EPD&CS — electrical power distribution and control subsystem
• IDMM — Intermediate and Depot Maintenance Manual
• AICBM — anti-ICBM
• ESTF — Electronic System Test Facility
• METVC — main engine thrust vector control
• DRG — Digital Ranging Generator
• LAPSS — Large-Area Pulse Solar Simulator
• CSPF — Critical Single-Point Failure
• EDB — Environmental Data Book
• FCSS — Fuel Cell Servicing System
• FOBS — Fractional Orbit Bombing System
• CIWG — Cargo Integration Working Group
• BDA — Bermuda Island
• CAP — Cost Account Plan(s)
• D&CS — displays and controls subsystem
• APS — Auxiliary Power Subsystem
• CCPDSR — communications center processing and display system
• GTE — General Telephone Electric
• BUAER — Bureau of Aeronautics
• DRMR — disposition report on MR
• EIASN — End Item Assembly Sequence Number
• DMES — dimethylethoxys
• BS — Block Specification
• CAPS — Crew Altitude Protection Suit
• ASO — Administrator Staff Office
• ASCADS — Aft Station Command and Data System
• AMS — Administrative Messaging System

• FACTS — FDF Automated Control and Tracking System
• GATE — Generic Automatic Test Equipment
• BAS — Breathing Air System
• DOVAP — Doppler Velocity and Position
• BOSO — Ballistic Orbital Support Operations
• ADC — Analog-to-Digital Computer
• AUCV — Advanced Unmanned Cargo Vehicle
• EGB — Electronic Gimbal Box
• GCID — Ground Computer Interface Device
• DTCS — Digital Test Command System
• BM/C3 — battle management and command, control, and
• DBG — Data Bus Group
• MSCL — Measurement Standards and Calibration Laboratory
• SEF — Sustaining Engineering Facility
• BPSK — Binary Phase Shift Key
• CM — Current Month
• FPQ — fixed, special-purpose radar
• CCFF — Cape Canaveral Forecast Facility
• COMM — Communications Society
• GDSO — Ground Data Systems Officer
• CDNR — CDR Discrepancy Notice Record
• DPDS — Distributed Processing Design System
• ERRC — expendability, recoverability, and repair capability
• CADSI — Communication and Data Systems Integration
• HSL — Hardware Simulation Laboratory
• BITS — Budget Impact Tracking System
• BEST — Booster Exhaust Study Test (NASA)
• GCHX — Ground Cooling Heat Exchanger
• SC — Switching Center
• MPHE — Material and Personnel Handling Equipment
• ECF — Equivalency Capability File
• JRB — Joint Review Board
• CMACS — Central Monitor and Control System
• ACC — Automatic Control Console
• MLL — MDM Launch Left
• ESS — Earth System Science
• CBV — Cabin Bleed Valve
• BSI — Boeing Services International
• FUB — Forward Utility Bridge
• ARABSAT — Saudi Arabian communications satellite
• BPO — Blanket Purchase Order
• BACS — Body Axis Coordinate System
• CIC — Capital Investment Council
• ILSA — Integrated Logistics Support Analysis
• ALSSSWG — ALS System Security Working Group
• ATC — ATE Computer
• HAK — Horizontal Access Kit
• CLIP — Combined Laser Instrumentation Package
• DWI — Data Word In
• AM — Actuator Mechanism

• APS — Automatic Processing System
• AN — Army-Navy
• AOES — Advanced Orbit Ephemeris System
• CBX — C-Band Transponder
• GDBS — Generalized Data Base System
• EOSDIS — Earth Observing System Data Information System
• LAMMR — large-antenna multichannel microwave radiometer
• CDC — Confined Detonating Cord
• DCEP — Data Collection and Evaluation Plan
• HFCL — Hydraulic Flight Control Laboratory
• DPCS — Distributed Process Construction System
• FBCS — fixed-base crew station
• CEIAC — Coastal Engineering Information Analysis Center
• BLV — Bleed Valve
• C&M — control and monitoring
• LAIRT — Large-Aperture Infrared Telescope
• ARGMA — Army Rocket and Guided Missile Agency
• GIA — general-purpose computer interface adapter
• BCT — Bus Configuration Table
• BKNO3 — boron-potassium nitrate
• ILMF — intermediate-level maintenance facility
• BCRT — Binary Code Range Time
• ITU — Input Terminal Unit
• AUF — Authorized User File
• HPT — high-pressure test
• EED — Electroexplosive Device
• AMRV — astronaut maneuvering vehicle
• CBA — Collective Bargaining Agreement
• CAL/OSHA — California Occupational Safety and Health Act
• D/D — digital-digital converter
• AMS — Attached Manipulator System
• FNT — Failure Notification Telex
• IFRU — In-Flight Replaceable Unit
• ATDP — Acceptance Test Data Package
• IMU — Inertial Measurement Unit
• CACB — Center Aisle Connector Bracket
• CADS — Computer-Aided Design System
• AWI — Accommodation Weight Investigation
• DES — Data Exchange System
• DETA — Diethylene Triamine
• CMS — Command Management System
• HIV — Helium Isolation Valve
• OCR — Operations Control Room
• AM — Assurance Management
• LCOM — Logic Control OutPut Module
• AMU — Attitude Match Update
• EPG — Electrical Power Generator
• ITSS — Integrated Tactical Surveillance System
• HALO — high-altitude large optics
• DARCOM — U.S. Army Material Development and Readiness Command

• AND — Air Force-Navy design
• ATS — Automatic Transcribing System
• GIM — Generalized Information Management
• FPCA — Forward Power Controller Assembly
• HRG — hemispherical resonating gyro
• EGF — Electrical Grapple Fixture
• DBI — Data Base Interface
• FCRT — Flight Display CRT
• GCMR — Ground Control Message Request
• HRIR — high-resolution infrared radiometer
• DIS — Data Interface System
• CUC — Computer Usage Control
• CAS — Calibrated Ancillary System
• EMON — Exception Monitoring
• CMC — Center Management Council
• AVVI — altitude/vertical velocity indicator
• IOE — Input/Output Error Log Table
• EFSSS — Engine Failure Sensing and Shutdown System
• CLRB — Cost Limit Review Board
• CUL — Common Use List
• CT — Crawler Transporter
• AVE — Automatic Volume Expansion
• DTSL — Data Transfer Systems Laboratory
• EVT — Extravehicular Transfer
• CARM — Customer Accommodation Requirement Model
• APLIS — automated payload ICD system
• DISP — Dispersive Spectrometer
• AL — airlock
• HDC — Hasselblad Data Camera
• ECAS — Experiment Computer Application Software
• DBFN — Data Bus File Number
• AMS — Automated Messaging System
• ADM — Air Data Management
• CSDD — Control Systems Development Division
• BFEC — Bendix Field Engineering Corporation
• EEL — Electrical Equipment List
• CBSA — Cargo Bay Stowage Assembly
• AWL — Automated Wire List
• GCDS — ground checkout display and control system
• ASATS — antisatellite simulation
• HAARS — High-Altitude Attitude Reference System
• ANVIL — CAD tool
• DSS — Digitized Sky Survey
• CWLM — Caution and Warning Limit Module
• BW — Beam Width
• ASP — Acquisition Strategy Planning
• ATL — Aero-Thermal Lab
• DARTS — Digital Automated Radar Tracking System
• CSDF — Central Source Data File
• C/T — control and timing

• M&I — management and integration
• CCS — Complex Control Set (NASA)
• ATS — Asynchronous Task Storage
• MPTA — Main Propulsion Test Article
• CDSL — Computer Data System Laboratory
• GORD — Ground Operations Requirements Document
• APT — Airborne Pointer Tracker
• FAMS — FDF Automated Monitoring System
• BDA — Bermuda [Kindley Field], Bermuda
• FIO — Furnished And Installed By Others
• CDB — Computer Data Bus
• CBS — Connector Bracket Signal
• ATP — Airborne Tracking and Pointing
• CELV — Commercial Expendable Launch Vehicle
• EPRN — Emergency Program Release Notice
• AT — Assembly Truss
• CR — Compliance Review
• CARID — Customer Acceptance Review Item Disposition
• ADS — Action Document Summary
• CIMS — Consolidated Information Management System
• FAE — Final Approach Equipment
• BTR — Burn Time Remaining
• SPS — Spectrum Planning Subcommittee
• FMEC — Forward Master Events Controller
• C/P — Cold Plate
• HYDAC — hybrid digital-analog computer
• CYC — cyclic mission-unique process
• BCI — Baseline Configuration Identification
• CMDS — Configuration Management Data System
• ESDP — External Sensor Data Processing
• CIJB — Cradle Interface Junction Box
• DMMH — direct maintenance man-hours
• ITRB — Integrated Technical Review Board
• BH/MP — Breather Hose/Mouthpiece
• BT — Burn Time (Engine)
• ASP — Airborne Science Program
• CAT-2 — communications and tracking comprehensive analysis tool
• IFF — Identification, Friend or Foe – Individually Fresh Frozen – International Flavors and Fragrances
• FCRA — Fecal Collection Receptacle Assembly
• CAB — Cost Audit Board
• ICMT — Intercontract Material Transfer
• EVLSS — Extravehicular Life Support System
• C/W — caution and warning
• BP — Bandpass
• G&C — ground rules and constraints
• BPSK — Biphase Shift Keying
• CAWG — Customer Accommodation Working Group
• CCRA — Cape Canaveral Reference Atmosphere
• GEDAC — General Electric Detection and Automatic Correction
• ARC — Automatic Responsivity Correction

• MCOP — Mission Control Operations Panel
• EVSC — Extravehicular Suit Communications
• EOHT — External Oxygen and Hydrogen Tank
• CTCS — Central Thermal Control System
• CIDR — Critical Intermediate Design Review
• B/C — Bench Check
• FA/COSI — final assembly closeout systems installation
• BMU — Bus Monitor Unit
• ESMCR — Eastern Space and Missile Center Regulation
• AVD — Air Vehicle Detection
• BTMS — Body Temperature Measuring System
• FCMU — foot-controlled maneuvering unit
• EPY — electronic control assembly pitch and yaw
• EVATA — Extravehicular Activity Translational Aid
• CDF&TDS — circuit design, fabrication, and test data
• DA — Decision Authority
• BCO — booster cutoff
• EOTS — Electro-Optical Threat Sensor
• ATG — automated time line generator
• CCVA — Chamber Coolant Valve Actuator
• CDUO — Coupling Display Unit Optics
• GFD — Government-Furnished Data
• DIEU — Digital Interface Electronics Unit
• HGA — High-Gain Antenna
• LSP — Least Significant Portion
• F&PC — finance and program control
• AMS — Automated Material System
• INTF — Interim National Test Facility
• CCS — Contamination Control System
• PSR — program status review
• APC — Advanced Propulsion Comparison
• CDC — Classified Document Control
• COFI — Checkout And Fault Isolation (on Board)
• DKC — Design Knowledge Capture
• ICDS — Interface Control Document Schedule
• EBS — Emergency Breathing Subsystem
• CCP — Commercial Change Proposal
• IPPB — Illustrated Provisioning Parts Breakdown
• BSD — Ballistic Systems Division
• BLS — Bottom Left Side
• BSRM — Booster Solid Rocket Motor
• BUSGEN — Bussin generator
• DEE — Digital Events Evaluator
• BILBO — built-in logic block observer
• CDM — Communications Data Manager
• ID&CA — inverter distribution and control assembly
• CMAT — Compatible Materials
• BEAF — Beam Expander Alignment Function
• BDX — burst detector X-ray sensor
• KSLOC — thousands of source lines of code

• E/O — engineering/operations
• CFM — customer-furnished material
• EPTU — Events per Time Unit
• CORA — Coherent Optical Radar Amplifier
• BM — Business Manager
• CDAS — Configurations Development Analysis Simulation
• BUR — Backup Rate
• HFRW — high-frequency resistance welding
• FND — Facility Need Date
• DCSP — Digital Control Signal Processor
• CDP — Command Data Processor
• CMRP — Configuration Management Requirements Plan
• DVIS — Digital Voice Intercommunications System
• PAD — Packet Assembler and Disassembler
• CCL — Commonality Candidate List
• IM — Intermodulation
• DDES — Data Display Expert System
• CRAS — Cost Reduction Alternative Study
• ACT — audio center transmission
• ESMD — Exploration Systems Mission Directorate
• EDCS — Electrical Distribution and Control System
• AWL — Augmented Wire List
• CLAS — Computerized Loads Analysis System
• LSSD — level-sensitive scan design
• DA — Digital to Analog
• CFES — Continuous Flow Electrophoresis System
• ASAP — ACE Shuttle Application Processing
• GMAL — General Electric Macro Assembly Language
• GMM — Geometrical Math Model
• CSFT — Combined Subsystem Functional Test
• CPE — Customer-provided equipment
• OSO — Office of Space Operations
• CTPD — Crew Training and Procedures Division
• IDMS — information and data management system
• EBCDC — extended binary-coded decimal
• GBT — gyro bias calibration value
• DEMP — direct EMP
• CECP — Compatibility Engineering Change Proposal
• MOCC — Mission Operations Control Center
• B/A — Barometric Altimeter
• DCF — Data Control Facility
• SCR — Strip Chart Recorder
• LVDC — Launch Vehicle Digital Computer
• FLCA — Forward Load Controller Assembly
• CMS-2 — Cambridge Monitoring System
• D/C — displays and controls
• HUT — Hard Upper Torso
• FESL — Failure Effects Summary List
• FMAR — Final Mission Analysis Review
• EUTELSAT — European Telecommunications Satellite

• DSCU — digital computer switching unit
• DPR — Definition Phase Review
• APC — automatic phase control
• CSTAR — Continuous Stellar-Tracking Attitude Reference
• AVVEU — altitude/vertical velocity indicator electronic unit
• FHO — failed hardover
• DLSM — Data Link Summary Message
• AOD — Advanced Object Data
• LVLH — local vertical/local horizontal
• H/O — Handover
• DCIU — Digital Control and Interface Unit
• M- — time in days before move operations
• FSH — fixed superhard
• CPSE — Common Payload Support Equipment
• AWCS — Agency-Wide Coding Structure
• SNIP — Space Network Interoperability Program
• IMF — Inventory Master File
• ISMRB — Information Systems Management Review Board
• EAL — equipment airlock
• MC&W — Master Caution And Warning
• AM — Antenna Management
• DCARS — data collection and reduction system
• CACC — Communications and Configuration Console
• LLTIL — long-lead-time items list
• TCA — Transformational Communications Architecture
• CCC — Control Center Complex
• EPGS — Electrical Power Generation Subsystem
• BAN — Budget Allocation Notice
• FPE — Functional Program Element
• SDS — Switched Data Service
• CMDM — control multiplexer/demultiplexer
• FTT — Field Test Telescope
• CFRP — carbon-fiber-reinforced plastic
• CASR — cost and schedule reporting system
• FERD — Facility And Equipment Requirements Document
• GHX — Ground Heat Exchanger
• AS — Antispoof
• CEPS — CITS Expert Parameter System
• CTI — Critical Transportation Item
• CCU — Communications Carrier Unit
• DACT — Disposable Absorption Collection Trunk
• AIP — Aircraft Instrumented Payload
• MASSPO — Manned Space Flight Support Project Office
• H/L — Hardline
• ATP — Activation Test Program
• HCR — High Cross Range
• BM-TW/AA — ballistic missile tactical warning/attack
• DAS — Demand Access System
• CCS — Communications and Control Segment
• BIU — Buffer Interface Unit

• IHX — Interloop Heat Exchanger
• BIA — Bus Interface Adapter
• KIP — Keyboard Input Processor
• HRL — Horizontal Reference Line
• CUIL — Common Usage Item List
• GETS — Ground Equipment Test Set
• FDLC — Final Design Load Cycle
• CFSD — Critical-Function Sequence Diagram
• BMI — Battelle Memorial Institute
• DDTS — Dynamic Docking Test System
• IRDTS — ITS RF and digital test set
• DS3 — deep-space surveillance system
• DEU-KYBD — display electronics unit equivalent inputs
• BRRS — Banana River Repeater Station
• AC — Audio Center
• TR — Tape Recorder
• AVSM — Auxiliary Video Switch Matrix
• MBC — Maximum Breathing Capacity
• MHE — material handling equipment
• ARTOOS — Advanced Radiation Technology Office optical support
• CGC — Command Guidance Computer
• BRCS — Basic Reference Coordinate System
• DSKY — Display Keyboard
• DELNI — Digital Ethernet Local Network Interconnect
• FEE — Failure Effects Evaluation
• CIVU — Cargo Integration Verification Unit
• EECOM — Electrical, Environmental, and Communications
• EH/M — extension hose mouthpiece
• FMPAC — fixed multipurpose application console
• LGS — Landing Gear Subsystem
• IDAC — Integrated Digital-Analog Converter
• EADS — engineering analysis and data systems
• DSIF — Deep-Space Instrumentation Facility
• SSR — Satellite Situation Report
• DF-SPE-A — Shuttle Project Engineering Office
• GTCU — Ground Thermal Conditioning Unit
• G/C — guidance and control
• CPAR — controlled parts approval
• AT — Access Tower
• AVID — automated verification information data base
• LOGO — Limit of Government Obligation
• LWS — Lightning Warning System
• CAS-YR — CAS yaw roll control mode
• NS — Network Services
• CRI — Certification Requirements Index
• BTC — Binary Time Code
• MELI — Master Equipment List Index
• ECCCS — Emergency Command Control Communications System
• EMCS — Energy Managment Control System
• C/R — Commutation Rate

• PAD — Project Authorization Document
• EBI — Eyeballs In ( GX)
• FIAR — Failure Investigation Action Report
• DCMB — Development Configuration Management Board
• UF — Utilization Flight
• CDAS — Configuration Design Analysis Simulation
• EDDF — Error Detection and Decision Feedback
• BATES — battlefield artillery tactical engagement system
• DECU — Data Exchange Control Unit
• CMSI — Command Monitor System Interface
• FVSS — Fuel Vapor Scrubber System
• GMIP — Government Mandatory Inspection Point
• BHS — Base Heat Shield
• BRF — band rejection filter
• L/V — Launch Vehicle
• CSIU — Core Segment Interface Unit
• AUTO-P — automatic pitch control mode
• GNCS — Guidance and Navigation Control System
• AW — Assembly Workstand
• CDDB — Common Diagnostic Data Base
• ESTA — Escape System Test Article
• AIT — autoignition test
• EVMU — Extravehicular Mobility Unit
• HCU — Hydraulic Charging Unit
• FCM — Flow Control Module
• CEDC — Cyclic Error Detection Code
• CSIT — CAP System Integration Test
• MOCITE — mobile checkout and integration test equipment
• CRSI — Ceramic Reusable Surface Insulation
• CICCR — configuration information control center requirement
• DIS — Data Inventory Service
• BC — Binary Counter
• GASD — Government Aerospace Systems Division
• UPN — Unique Project Number
• EPSTF — Electrical Power System Test Facility
• EETB — electronic/electrical termination building
• BAC — Buffer Access Card
• DIH — Discrete Input High
• GT&A — Ground Test And Acceptance
• CC — contamination control
• BSE — Booster Systems Engineer
• CCHS — Crew Compartment Heat Shield
• SLE — Space Link Extension
• MAICO — manufacturing, assembly, installation, and checkout
• CCATS — command communications and telemetry system
• IISS — Integrated Information Support System
• GLLD — ground locator laser designator
• DPRS — Docking Probe Retraction System
• ASA — Adapter Service Area
• DSMC — Data Services Management Center

• G/T — Gain versus Temperature
• CDCD — Cargo Design Control Drawing
• CCS — Communications and Control System
• GSSI — Ground Support System Integration
• EFE — Electronic Field Experiment
• AMS — Automated Measurement System
• CQIM — Configuration and Quality Information Management
• GEM — generic electronics module
• CRP — Configuration Requirements Processing
• K-STSPS — KSC STS Project Specification
• AM — Alpha Meter
• ERSI — Elastomeric Reusable Surface Insulation
• CSTS — Cryogenic Storage and Transfer System
• LINS — Laser Inertial Navigation System
• MC/EC — mission-critical/embedded computer
• FODS — fiber-optic demonstration system
• DSTF — Delta Spin Test Facility
• EOSH — Electro-Optical Sensor Hardening
• IFTE — Intermediate Forward Test Equipment
• CHSF — Cargo Hydrazine Service Facility
• G/G — ground to ground
• EXO — Experiment Operator (in Spacelab)
• RFS — Radio Frequency Surveillance
• DADE — Data Acquisition and Documentation Equipment
• BPV — Bipropellant Valve
• CA — Contract Award
• CAU — Command Activation Unit
• DTU — Development Test Unit
• DMICB — Daily Mission Integration Control Board
• MDSSC — McDonnell Douglas Space Systems Company
• FCTF — Fuel Cell Test Facility
• AVE — Airborne Vehicle Equipment
• MGVT — Mated Ground Vibration Test
• DIR — Document Information Record
• AMC — Automatic Manual Control
• CGAD — Collins General Aviation Division
• MPTP — Main Propulsion Test Program
• CAIB — Columbia Accident Investigation Board
• AVREL — availability and reliability program
• LSU — Life Support Umbilical
• NCTAMS — Navy Computer and Telecommunications Air Master Station
• FMAD — Fluid Management And Distribution
• PIO — Program Integration Office
• K-IUSN — KSC IUS Notice
• PPS — Payload Planning System
• ESW — Engine Status Word
• SGS — Svalbard Ground Station
• ISO — International Standardization Organization
• CINCSBL — commander-in-chief, Space-Based Laser
• CBRF3 — Bromotrifluoromethane

• COMPOOL — Common Data Pool
• ELE — Earth Limb Experiment
• GTT — Group Technology Time
• DO — Discrete Output
• EREP — Earth Resources Package
• IBR — Implementation Baseline Review
• FHP — Fuel High Pressure
• CSCD — Control System Command Decoder
• FPIF — fixed-price incentive fee
• MPBS — Main Power Bus Supply
• LOV — Limit of Visibility
• SPIP — Strategic Program Implementation Plan
• CEU — control electronics unit
• COL — Checkout Language
• GFTM — Generic Fluids Transfer Model
• CAU — Command Acquisition Unit
• GEOMOD — geometric modeler
• CLOUDSAT — cloud cover statistical analysis program
• GPTE — general-purpose test equipment
• AR — Avionics Ring
• ECLSS — environmental control and life support system
• MH — man-hour
• FSTS — frequency standard test set
• FIM — field instruction memorandum
• FMCA — forward motor controller assembly
• HFCV — Helium Flow Control Valve
• DVT — design verification testing
• CSCS — Central Security Control System
• M&O — Mission Operations
• EVC — extravehicular communications
• EBO — Eyeballs Out (-GX)
• CAT — computer-aided test
• ESI — Electrical System Integration
• CAR — Customer Acceptance Review
• DMOS — diffusive mixing of organic systems
• EEWS — Emergency Egress Window System
• ITRD — Integrated Test Requirements Document
• SA — Service Agreement
• BCR — Bar Chart Report
• MFG — Major Functional Group
• EWE — Emergency Window Escape
• IMCP — Integrated Monitor and Control Panel
• HCMM — heat capacity mapping mission
• ETRR — environmental test readiness review
• KUSP — Ku-Band Signal Processor
• HPRV — Hydrogen Pressure Relief Valve
• CHIPSAT — Cosmic Hot Interstellar Plasma Spectrometer
• CEEP — Composite Entry Evaluation Program
• GISO — General Industry Safety Orders
• AUP — Ames Unitary Plan

• COMM — Communications Commercial
• AVCG — Automatic Vapor Crystal Growth
• EBNET — EOS Backbone Network
• BPC — Boost Protective Cover
• EBW — Exploding Bridge Wire
• FRM — Facility Requirements Manager
• SIRTF — Space Infrared Telescope Facility
• ICCP — Interface Coordination and Control Procedure
• ESSP — Earth System Science Pathfinder
• TOCC — TDRS Operations Control Center
• GEA — Gimbal Electronics Assembly
• ASC — Array Stowage Container
• HDDR — high-density digital recorder
• DT&O — data, test, and operation
• EOG — Electroculogram
• EOTF — Engineering Order To Follow
• ETOC — Estimated Time Of Correction
• H/F — human factor
• LPG — liquid-propellant gun
• MLI — Multilayer Insulation
• ROM — Rough Order Magnitude
• EWA — Estimated Warehouse Arrival
• CAL — Computer-Aided Logistics
• DELTA — Detailed Labor and Time Analysis
• BMMD — body-mass measuring device
• MERL — Materials Engineering Research Laboratory
• BCD — Baseline Configuration Document
• AW — Airlock Wall
• M&A — monitor and alarm
• COBE — Cosmic Microwave Background Explorer
• DIPL — Display Initial Program Load
• I&O — Inlet and Outlet
• GAP — GOAL Automatic Procedure
• DRK — Display Request Keyboard
• CPE — Change Package Engineer
• LOT — Lift-Off Time
• SMTF — Shuttle Mission Training Facility
• FCR — Future Communications Requests
• B/O — booster/orbiter
• FTMC — Fault-Tolerant Memory Control
• CAR — Cloud Absorption Radiometer
• AST — all-systems test
• HGVT — Horizontal Ground Vibration Test
• DOC — Data Operations Center
• MOSC — Mission Operations Support Center
• KBC — Kapton Beta Cloth
• H/E — Heat Exchanger
• PTC — Payload Training Capability
• BP — Barber Pole
• CPTA — Core Propulsion Test Article

• MD-YR — yaw roll manual direct control mode
• F/O — fuel oxidizer
• DSPM — designated subsystem project manager
• DCDS — Distributed Computing Design System
• BDA — Bermuda Tracking Station
• ERTG — Economic Radioisotope Thermoelectric Generator
• DRSCS — digital range safety command system
• BOT — beginning of tape
• COM-M — Common Mode
• EMDM — Enhanced Multiplexer/Demultiplexer
• EMD — Entry Monitor Display
• GIC — GPC Interface Console
• ESCS — Electronic Spacecraft Simulator
• C/F — Center Frequency
• DCNP — Document Change Notice Proposal
• EP&PS — electrical power and pyrotechnics subsystem
• D/A — decoder activate
• FSTE — Factory Special Test Equipment
• BVC — Boost Voltage Converter
• G-V — Gravity-Velocity
• DEOSS — Demonstration of Electro-Optical Surveillance Sensor
• BISC — Biomedical Instrumentation, Scientific and Crew
• GTU — Glycol Trim Unit
• SNL — Sandia National Laboratory
• B/A — boost/abort
• MACRO — Merge and Correlate Recorded Output
• F/E — Full/Empty
• CAR — Certification Approval Request
• ERCB — Energy Resources Control Board
• CFS — schedule factor
• FPEG — fast-pulse electron gun
• AWS — Advance Warning System
• CCD — Constants Change Display
• CSDT — Computer Software Data Tapes
• ELACS — extended-life attitude control system
• DDMS — DOD manager for Space Shuttle support
• CHARM — composite high-altitude radiation model
• ISSO — Information Systems Security Office
• ESB — Essential Switching Box
• EODB — end of data block
• TDD — Task Description Document
• ETROD — Eastern Test Range Operations Directive
• FPDE — Focal Plane Drive Electronics
• CSG — Concept Synthesis Group
• MT&SCDSS — materials technology and structural concepts for dsystems
• MCPS — Major Cost Proposal System
• CCBD — Control Change Board Directive
• IRG — Inertial Rate Gyro
• ECDU — Electronic Coupling Display Unit
• B/O — Burnout

• DVU — Delta Velocity Ullage
• CMF — Consolidated Maintenance Facility
• INBIT — input bit
• EGIL — Electrical, General Instrumentation, and Lighting Engineer
• GCILC — Ground Command Interface Logic Controller
• CARR — Customer Accommodation Requirement Representative
• EFFGRO — Efficient Growth (Computer Program)
• FDIIR — fault detection, isolation, identification, and
• FOSMS — facility operation scheduling and monitoring system
• DSAT — Defensive Satellite
• STS — Shuttle Transportation System
• DBGMP — Data Bus Generation and Maintenance Package
• ECRC — Engineering Contract Requirements Committee
• CD — coin dimple
• DSEA — data storage electronics assembly
• JTA — Job Task Analysis
• CASP — Change Assessment Summary Package
• CRC — Cyclical Redundancy Code
• CD/V — concept definition and validation
• CTDU — cross-link transponder data unit
• HDI — Human Development Institute
• CAMERA — control and monitoring equipment resource allocation
• F&E — Facility and Environment
• LLO2 — lunar liquid oxygen
• CPES — crew procedures evaluator simulator
• FABU — Fuel Additive Blender Unit
• FSF — First Static Firing
• CIRRIS — Cryogenic Infrared Radiance Instrumentation for Shuttle
• GUCP — Ground Umbilical Carrier Plate
• MDDS — Material Directory Data Sheet
• KDMS — Kennedy Data Management SYstem(s)
• DLO — Director of Launch Operations
• BCS — Beam Control System
• ALC — Audio Load Compensator
• CINC — commander-in-chief
• ENDF — Evaluated Neutron Data File
• FAME — Formatting And Multiplexing Equipment
• BDD — Burst Detector Dosimeter
• MOC — Ministry of Communications
• COSI — Closeout System Installation
• BSC — Brake Skid Controller
• DCOS — Data Communication Output Selector
• DODI — DoD Instruction
• EVAL — Earth-viewing applications laboratory
• ESTL — Electronic Systems Test Laboratory
• CEMF — Counterelectromotive Force
• BET — best estimate of trajectory
• EVCON — Events Control (Subsystem)
• RS — Relay Satellite
• CLF — Consolidated Logistics Facility

• HBR — High Bit Rate
• DTC — Design to Cost Program
• KAU — Kilo Accounting Unit
• BFN — beam-forming feed network
• ETSS — External Tank Separation Subsystem
• MBPS — Million bits per second
• EMCC — Emergency Mission Control Center
• HMC — Hybrid Microcircuit
• LRO — Large Radio Observatory
• GCCC — Ground Control Computer Center
• CRL — Communications Research Laboratory
• DOS — Daily Operations Summary
• CTC — Chief Test Conductor
• CHW — Command Header Word
• FBC — fluidized-bed combustion
• CMW — compartmented mode work station
• KV — Kill Vehicle
• ESDU — Event Storage and Distribution Unit
• IDEAS — initial design and evaluation analysis system
• DMCM — double-density modular core memory
• DHS — Discrete Horizon Sensor
• HSU — Helium Service Unit
• I/S — installation of systems
• MMIDS — Man-Machine Interface Development Station
• HEO — Highly Elliptical Orbit
• COMM — Communications software
• GIE — Ground Instrumentation Equipment
• IPDR — Incremental Preliminary Design Review
• GASPI — Gimbal Angle, Surface Position Indicator
• FPBOV — Fuel Preburner and Oxidizer Valve
• EDCAS — equipment designer's cost analysis system
• GLC — Generator Line Contractor
• MDRD — Mission Data Requirements Document
• L&M — Light and Medium Vehicles Office
• IECM — induced-environment contamination monitor
• INS — Information Network System
• GTRI — Georgia Tech Research Institute
• FTFD — Field Test Force Director
• MEDICS — Medical Information Computer System
• HRDM — High-Rate Demultiplexer/Multiplexer
• MIDDS — Meteorological Interactive Data Display System
• HULL — Hardware Utilization and Location List
• MICS — management information and control system
• DACB — data acquisition control and buffer
• DHA — design hazards analysis
• BUC — Backup Computer
• CA — Corrective Action
• IMOC — Integrated Mission Operations Center
• CMPP — Configuration Management Program Plan
• MMDF — Mission Model Data File

• DSIFE — DSIF equipment
• CLOT — Combined Loads Orbiter Test
• CIVT — Cargo Interface Verification Test
• B/SC — brake/skid control
• CCFT — Controlled Current Feedback Transformer
• CCU — Communications Carrier Umbilical
• FOCR — Final Operational Concept Review
• CDF — Cool-Down Facility
• FMX — FM Transmitter
• B/A — Buffer Amplifier
• COAS — Crewman Optical Alignment Sight
• GHC — ground half-coupling
• HDP — Hold-Down Post
• DTE — Direct To Earth
• JPP — Joint Program Plan
• DTM — Deputy Technology Manager
• EOCM — Electro-Optical Countermeasures
• FIIWG — Facility Integration and Installation Working Group
• EUVE — extreme ultraviolet experiment
• MCBF — mean cycle between failures
• FMC — forward motor controller
• HAADS — High-Altitude Attitude Determination System
• HCV — Helium Check Valve
• MDSE — Manufacturing and Development Support Equipment
• SM — Spectrum Management
• COMAT — Compatibility of Materials
• GIAG — Government-Industry Advisory Group
• ISTA — Intertank Structural Test Assembly
• HEG — Helium Gauge
• ESMD — Earth Science Mission Directorate
• ER&I — engine receiving and inspection
• F/F — Fill/Full
• LGTA — Landing Gear Test Article
• IVP — Interface Verification Plan
• CAP — Crew Activity Plan
• FCMC — Facility Control and Monitor Console
• BUC — Buckhorn California
• DYB — Dynamic Braking
• CSPU — Core Segment Processing Unit
• CCSR — Crew Compartment Stowage Review
• MPAD — Mission Planning And Analysis Division (JSC)
• MSFSG — Manned Space Flight Support Group
• ETI — elapsed-time indicator
• CONAD — CONUS defense
• BCWP — budget costs for work performed
• CARID — customer acceptance report item disposition
• GWT — Ground Winds Tower
• EDO — extended-duration orbiter
• BB — BaseBand
• CC — Computer Center

• DDDU — Display Decoder Driver Unit
• EVCF — Eastern Vehicle Checkout Facility
• GAX — GN&C annunciation interface
• BUN — BITE Update Notice
• LTR — Laboratory Test Report
• IRCFE — Infrared Communications Flight Experiment
• LIOH — Lithium Hydroxide
• IVLN — integrated vehicle logic network
• CA — Cost Account
• BPR — Biological and Physical Research
• HWT — hypersonic wind tunnel
• CWSU — Condensate Water Servicing Unit
• CAM — cost account manager
• MARP — Markov Analysis and Reliability Prediction
• DOH — Discrete Output High
• IEA — Integrated Electronic Assembly
• GMN — GoGMNGorman (TACAN Station)
• ETS — Engineering Technology Satellite
• BPD — Baseline Program Document
• DIDSIM — defense-in-depth simulation
• BIS — Biocide Injection System
• CUP — Commonality Usage Proposal
• FDSR — Final Design Status Review
• KA — Kill Assessment
• EIFA — Element Interface Functional Analysis
• CLCS — Consolidated Launch Control System
• CCV — Chamber Coolant Valve
• PSC — Program Support Communications
• CAPRI — Capacitance Rate Integrator
• CRTU — Cryogenic Radiator Test Unit
• ALS — airlock system
• SRS — Service Request System
• CCS — Computer Core Segment (NASA)
• IRAM — Input Random Access Memory
• HGDS — Hazardous Gas Detection System
• CIRHS — Critical Items and Residual Hazards List
• MPIO — Mission Payload Integration Office
• SSC — John C. Stennis Space Center
• HIU — Headset Interface Unit
• IMCC — Integrated Mission Control Center
• GF&P — gases, fluids, and propellants
• MD-BF — body flap manual direct control mode
• LARS — Laminar Angular Rate Sensor
• AUDF — Automated Unit Development Folder
• DOM — Development Operations Manager
• CIRD — cargo integration review dry run
• IOT&E — integration operational test and evaluation
• HER — HIM EquiPment Rack
• L/T — Load Test
• FHS — Forward Heat Shield

• MAI — Machine-Aided Indexing
• HI — Hawaiian Islands
• HSF — Hypergolic Servicing Facility
• DDHA — Digital Data-Handling Assembly
• BIA — Booster Insertion and Abort
• DOT — Deep Space Optical Communications Terminal
• SMTF — Software Maintenance and Training Facility
• IDEP — Interservice Data Exchange Program
• CLIPS — C-language inferencing for production systems
• DESPOT — Design Performance OPtimization
• DNS — Director of Network Services
• LEB — Lower Equipment Bay
• CCP — Center Console Panel
• DDDL — Digital Data Downlink
• CASES — control and structures experiments for space
• HFDS — Hydrogen Fluid Distribution System
• TOTS — Transportable Orbital Tracking System
• CCC — Computer Checkout Console
• DAI — Deferred Acceptance Item
• MBV — Main Base Visit
• FSV — Flight Space Vehicle
• CAFB — Chanute Air Force Base
• MMIP — Mass Memory Integration Plan
• FMD — Fixed-Module Drive
• DMM — developmental instrumentation, MDM mid
• MAOT — maximum allowable operating time
• IMIP — Industrial Modernization Incentive Program
• FLW — Fellows (TACAN Station)
• CDPA — Classified Data Preparation Area
• GAS — Getaway Special
• GESS — Goddard experiment support system
• ITIS — ITI sheet
• FT&C — Formal Training And Certification
• GCILU — Ground Control Interface Logic Unit
• BSR — Biological Sciences Research
• CH/SL — certified hardware/software list
• EBR — Eyeballs Right (-GY)
• KBU — Keyboard Unit
• BCP — Benchmark Control Point
• FMOFPL — First Manned Orbital Flight with Payload
• ASC — automatic sensitivity control
• CD — cold-drawn
• HIL — Hardware In Loop
• MAU — Million Accounting Units
• BPR — Baseline Performance Review
• EPO — Element Project Office
• M/R — Mixture Ratio (Fuel To Oxidizer)
• DRUC — Disposition Record Unsatisfactory Condition
• CCO — current-controlled oscillator
• LAET — Limiting Actual Exposure Time

• MGC — Manual Gain Control
• MRIM — MOD/MOC reconfiguration interface manager
• LORA — level-of-repair analysis
• ICW — interrupted continuous wave
• AWPV — automated weld process verification
• DSCN — Design and Simulator Computation Network
• GVSC — Generic VHSIC Spacecraft Computer
• CC — Common Carrier
• HCSL — Hybrid Computation And Simulation Laboratory
• CSPO — Control Systems Procurement Office
• FIS — Facility Interface Sheet
• CAM — Computer Annunciation Matrix
• CCMTA — Cape Canaveral Missile Test Annex
• LS/PPF — Launch Site Payload Processing Facility
• ISIS — Integrated Safety Information System
• CPF — Calibration Parameter File
• ISHA — Integrated System Hazard Analysis
• CCS — Central Computer and Sequencer
• DS-RPIE — direct support real property installed equipment
• ESPS — Experiment Segment Pallet Simulator
• LUD — layup die
• MORD — Medical Operations Requirements Document
• CDD — Command Decoding and Distribution
• CLF — Central Logistics Facility
• HTP — Hydroxyl Terminated Propellant
• GVO — Gaviota (TACAN Station)
• HAMP — Handling and Moving Procedure
• HAM — Height Adjustment Maneuver
• DVD — Delta Velocity Display
• FHD — fixed-head disk
• JHU — The Johns Hopkins University (Baltimore, MD)
• ESMS — Environmental And Special Measurements Systems
• FOI — Field Operations Installation
• GPCIPL — general-purpose computer initial program load
• SAC — Satellite de Aplicaciones Cientificas
• BFRP — boron fiber-reinforced plastic
• AUTO-YR — automatic yaw roll mode
• KDT — Keyboard and Display Test
• CCU — Crew Communications Unit
• GWA — General Work Area
• C2S — command and control subsystem
• DHP — developed horsepower
• FDX — simultaneous, two-way, full-duplex channel
• HCS — high-carbon steel
• EXH — Exchange Hardware
• LCB — Least Common Bit
• MSC — Mission Support Contract
• C&I — communication and instrumentation
• IEMP — Integrated Enterprise Management Program
• GOMMS — Ground Operations and Material Management System

• CTIS — crawler-transporter intercom system
• MLB — Multilayer Board
• IAB — IUS Assembly Building
• GRID — Graphic Retrieval and Information Display
• GNE — Guidance and Navigational Electronics
• AVL — address validity
• EBD — Eyeballs Down ( GZ)
• ESO — Event Sequence Override
• BATE — Base Activation Test Equipment
• ICTE — Inertial Component Test Equipment
• PDL — Procedure Distribution List
• BLOW — booster lift-off weight
• GPUR — GOAL Test Procedure Update Request
• GSE&I — general systems engineering and integration
• FOSDIC — film optical sensing device for input to computers
• CTCP — Configuration Test Change Period
• CD — Central Database
• CAE — Corrective Action Engineer
• ECRV — Exponentially Corrected Random Variable
• EVF — Equipment Visibility File
• ECSS — Extendable Computer System Simulator
• BMVU — ballistic missile view
• EVCS — Extravehicular Communications System
• H/X — heat exchanger
• CMIF — Common Module Integration Facility
• PP — Planning Package
• JTS — Job Training Standard
• COV — Cutoff Value
• LMCO — Lockheed Martin Corporation
• HCM — hard-copy module
• LVE — Low-Voltage Electronics
• K-STSM — KSC STS Plan/Requirement
• CCC — Communication Control Center
• EO — Earth Observer
• HEMV — Helium Manual Valve
• EEE — electronic, electrical, and electromechanical
• HPG — high-pressure gas
• HESS — high-energy squib simulator
• GSTS/BM — ground-based surveillance and tracking sagement
• CDH — Constant Differential Height
• H/S — Heat Shield
• CSPL — Certified Special Processor List
• ITS — Information Technology Security
• BM — Battle Management
• IPD — Information Processing Division
• M/U — Mockup
• CUDS — Cumulative Data Statistics
• BCCT — Break Control Command Transducer
• BSS — Backup System Services
• LEASAT — Leased Satellite

• FSLT — first sea-level test
• SMA — Science Monitoring Area
• HPGS — High-Pressure Gas System
• MDSD — mate/demate stiff-leg derrick
• DSFT — Distributed System Fault Tolerance
• CMT — Critical Military Target
• IMST — Integrated Mission Simulation Test
• MOSFET — Metal-On-Silicon Field-Effect Transistor
• GRTLS — Glide Return to Launch Site
• GEOPAUSE — geodetic satellite in polar geosynchronous orbit
• ISU — international system of units
• EMCD — electromechanical control diagram
• MCRF — Mission Configuration Requirements File
• EKF — Extended Kalmar Filter
• CAP — contractor-acquired property
• CDCD — Collins Defense Communications Division
• ICDR — Incremental Critical Design Review
• FILE — Feature Identification and Location Equipment
• MSDS — materials safety data sheet
• MHA — multiple-headset adapter
• CCC — contaminant control cartridge
• KKW — Kinetic Kill Weapon
• MGA — Middle Gimbal Angle
• FS3 — Future Security Strategy Study
• MIRV — multiple independently targetable reentry vehicles
• GSP — Ground Safety Plan
• MHV — Miniature Homing Vehicle
• CCP — Cost Control Program
• CCM — controlled carrier modulation
• ECC — Encore Computer Corporation
• NISN — NASA Integrated Services Network
• ICMS — Indirect Cost Management System
• MPS&P — material processing specifications and procedures
• ENS — en route nuclear shuttle
• CL — Contractor Leased
• EACE — Early Analysis Capability Enhanced
• FDT — full-duplex teletype
• DSDU — Data Storage Distribution Unit
• HMP — Hydrazine Monopropellant
• CTM — Center Technology Manager
• LVPS — low-voltage power supply
• J/S — jammer-to-signal ratio
• LEU — large external unpressurized
• KHIL — KKV hardware in the loop
• MMPSE — Multiuse Mission Payload Support Equipment
• CAM — content-addressable memory
• CTM — Control, Test and Monitor
• CFSTI — Clearinghouse for Scientific and Technical Information
• I/Q — in phase/quadrature
• CCC — Complex Control Center (NASA)

• HEM — Hitchhike Experiment Module
• SSE — Solar System Exploration
• IDB — In-suit Drink Bag
• HIRAP — High-Resolution Accelerometer Package
• EMCFA — Electromagnetic Compatibility Frequency Analysis
• PAR — Performance and Accountability Report
• CCP — Configuration Change Point (NASA)
• PCB — Program Control Board
• KMI — KSC Management Instruction
• GUIDO — Guidance Officer
• CAMP — Common Ada Missile Package
• GITG — Ground Interface Technical Group
• PCD — Project Commitment Document
• NEO — Near Earth Object
• LSTS — Launch Site Test Set
• EPCDC — electrical power conditioning, distribution, and control
• ITI — inspection and test instruction
• ICCD — intensified CCD
• LSST — Launch Site Support Team
• BPC — backpressure control
• ILP — Integrated Logistics Panel
• JWST — James Webb Space Telescope
• HPS — Hydraulic Power SYstem
• M/F — Maintenance Factor
• FPOV — Fuel Preburner Oxidizer Valve
• IWS — Integrated Water System
• DDTF — Dynamic Docking Test Facility
• BCP — Base Condemnation Percent
• FCR — Facility Change Request
• MORL — Manned Orbiting Research Laboratory
• IDI — Instrumentation Data Item
• EDPL — Engineering Development Processor Laboratory
• EDDR — electron dipole-dipole reservoir
• LPOT — low-pressure oxidizer turbopump
• IBSS — Infrared Background Signature Survey
• DSL — Design Specification List
• DART — Director and Response Tester
• GWM — Guam (STDN)
• IFO — Information Systems Office
• FAMU — fuel additive moisture unit
• MICNS — modular integrated communication and navigation system
• EIWB — end item workbook
• IECO — Inboard Engine Cutoff
• MIPR — Military Intergovernmental Purchase Request
• FSGS — flare/shallow glide slope
• INITCO — initialization and checkout
• MD-P — pitch manual direct control mode
• ITRR — Integrated Technology Requirements Review
• BSA — battery bus solar array
• BPR — Bimonthly Progress Report

• ERINT — exoatmospheric reentry vehicle interceptor
• CHI — computer-to-human interface
• TV — Test and Verification
• CDS — Centre de Donnés astronomiques de Strasbourg
• MMCL — Master Measurement and Control List
• AWS — Automated Wiring System
• M/E — mechanical/electrical
• MOTR — multiple-object tracking radar
• EPGS — Earth Observation System Polar Ground System
• CASS — CITE Augmentation Support System
• CTS — Compatibility Test Set
• GRACE — Ground Radar Calibration Equipment
• HPOP — high-pressure oxidizer pump
• GSAT — Geosynchronous Satellite
• CFY — Company Fiscal Year
• MMDB — Master Measurement Data Base
• CDF — cable distribution frame
• CMD — controller, main display
• HPR — Hydrogen Pressure Regulator
• IAH — Interface Attachment Hardware
• NMC — Network Monitor and Control
• BSR — Bit Slippage Rate
• LMG — Left Main Gear
• ETCO — equipment transfer/change order
• KLOC — Thousand Lines of Code
• CPCB — Crew Procedures Control Board
• GASP — General Ascent Trajectory and Sizing Program
• MAPOLE — Magnetic Dipole Spark Transmitter
• GSV — Glove Stop Valve
• BCC — Beacon Control Console
• EADT — Experiment Agency Data Tape
• DOT/CIAP — DOT Climatic Impact Assessment Program
• CAD — Center Assistant to the Director
• MERU — Milli-Earth Rate Unit
• BP — Buttock Plane
• IDCP — interdivision change proposal
• DFIS — DFI subsystem
• WOTS — Wallops Orbital Tracking Station
• CDOM — Chief Draftsman Office Memorandum
• CDDT — Countdown Demonstration Test
• CPO — Central Planning Office
• HGV — Hydrogen Gas Valve
• MSR — mission support request (US DoD)
• CSOP — Crew Systems Operating Procedures
• JES — Joint Environment Simulator
• GCE — GPS Cargo Element
• ETVA — External Tank Vent Arm
• CASE — Care Application Service Element
• HLAL — high-level assembler language
• EXC — Experiment Computer

• I/V — Inlet Valve
• GSTDN — Ground Spaceflight Tracking and Data Network
• IIOP — in-orbit plane
• CIP — International Communications and Information Policy
• PCN — Procurement Control Number
• CAO — Cost Administration Office
• LONS — Local On-Line Network System
• FPO — Future Projects Office
• CCSD — Collins Communications Systems Division
• HHMU — hand-held maneuvering unit
• ISWG — Integrated Support Working Group
• KOI — Ksc Operation Instruction
• HSSM — Hardened Space Sensor Model
• FWG — Facility Working Group
• LTA — Lower Torso Assembly
• LTG — Linear Tangent Guidance
• DVIS — Digital Voice Information System
• DP — Destination Point
• IAN — Institutional Area Network
• HEGV — Helium Gauge Valve
• GUL — GSE Utilization List
• GETI — Ground Elapsed Time of Ignition
• FVDS — fuel vent and drain system
• F/R — Flared Rudder
• MAAB — Materials Application Advisory Board
• EOMF — End Of Minor Frame
• LIDAR — Laser-Radar
• CSAP — Control System Analysis Program
• CBC — Change Board Commitment
• AVE — Avenal, CA [Avenal Airport], USA
• HCCB — Hardware Configuration Control Board
• DSB — Document Status Bulletin
• IES — Information Extraction System
• MPCMP — Mass Properties Control and Management Plan
• HKV — hit-to-kill vehicle
• ENVIRON — space natural environment model
• TAP — Telemetry Acquisition Processor
• MBI — Multibus Interface
• GPME — general-purpose mission equipment
• EVSTC — extravehicular suit telecommunications
• CAB — Computer Address Bus
• BUIC — backup interceptor control
• FIR — Fuel Indicator Reading
• CDC — Command and Data Handling Console
• BE — Beam Expander
• BMC3 — battle management communications
• GSIU — Ground Standard Interface Unit
• CDCO — coupling display, manual control optics
• LSEAT — Launch Systems Evaluation Advisory Team
• CAN — Certification Analysis Network

• IESD — Instrumentation and Electronic Systems Division
• FECR — Final Experiment Concept Review
• IGES — Initial Graphic Exchange Specification
• GSU — Gas Servicer Unit
• GST — Ground System Test
• MOL — Mission Operations Laboratory
• ERETS — Edwards rocket engine test site
• ETLOW — External Tank Lift-Off Weight
• CGSS — Cryogenic Gas Storage System
• CD — call director
• IAPU — Improved Auxiliary Power Unit
• BETA — Ballistic Exploitation and Target Acquisition
• DSP — Director of Systems Planning
• D/P — data pack
• BRIL — budget receipt/issuance log
• TOTS — Transportable Orbital Tracking Station
• MIVP — Mission Interface Verification Plan
• IURAP — International User Resource Allocation Panel
• CMU — control and monitor unit
• MPMSE — Multiuse Payload and Mission Support Equipment
• K-STSN — KSC STS Notice
• KKVWS — Kinetic Kill Vehicle Weapon System
• BMAP — Buffer Map
• HSCS — High-Speed Communications Subsystem
• EATR — Extravehicular Assist Teleoperator Robot
• CQDR — Critical Qualification Design Review
• ELMS — elastic-loop mobility system
• IUDS — Integrated Utilities Distribution System
• FOS — Flight Operations Segment
• ELRAD — Earth Limb Radiance
• JCA — Jettison Controller Assembly
• IVE — Interface Verification Equipment
• GEO — Geostationary Orbiters
• IGC — Interactive Gaming Center
• CCR — Configuration Control Record
• MFLOPS — millions of floating-point operations per second
• G/E — graphite-epoxy
• DVO — Delta Velocity On/Off
• ECCP — Experiment Configuration Control Panel
• MMH/Y — maintenance man-hours per year
• FPWG — FSD PLanning Working GRoup
• SMEX — Small Explorer
• ESF — Explosive Safe Facility
• IVA — Intravehicular Activity (related To Spacecraft)
• EPDB — Experiment Power Distribution Box
• ESTEC — European Space Technology Center
• MTAP — multitask analysis program
• CCC — Controller Checkout Console
• ODM — Orbit Data Message
• COMPSIM — concept mission performance simulation

• GTVI — gimbal angle and translational velocity indicator
• CCC — Coordinate Conversion Computer
• MSEC — Master Separation Events Controller
• DSD — Defensive Shields Demonstration
• CINCSAC — commander-in-chief, Strategic Air Command
• GOSRP — ground operational support requirements plan
• BO — beating oscillator
• CC — Crew Certified (NASA)
• LFO — low-frequency oscillator
• HAA — high-altitude abort
• LINC — logic and information network compiler
• DPG — dual-purpose gyro
• MPAC — Multipurpose Applications Console
• HGS — Hydrogen Gas Saver
• GCDC — Ground Checkout Display and Control
• COA — Center Operations Area
• DSP — DSS Spectral Processor
• FSIM — Functional Simulator
• FDDB — Function Designator Data Base
• BEC — Backup Event Controller
• CCP — Contamination Control Plan
• CCR — Cargo Compatibility Review
• CC — Configuration Controller
• MMCA — midmotor controller assembly
• DMON — Discrete Monitoring
• EAT — Environmental Acceptance Test
• DNO — descending-node orbit
• MOCR — mission operations control room
• CCD — central command decoder
• IMSS — In-Flight Medical Supply System
• LBL — Left Buttock Line
• DETEC — Defensive Technology Evaluation Code
• CGF — Command Generation Function
• MDV — Map and Data Viewer
• MCCR — Mission-Critical Computer Resource
• M/M — maximum and minimum
• HFCW — hydrogen fluoride continuous wave
• CVSD — Continuous Variable Slope Data
• CLCS — Checkout and Launch Control System
• LIC — Load Interface Circuit
• LIE — Left Inboard Elevon
• EXT — Experiment Terminal (Operator Console On Spacelab)
• CCP — Configuration Control Phase (NASA)
• IPWG — Integrated Project Working Group
• LPOP — low-pressure oxidizer pump
• HFO — high-frequency oscillator
• COT — Critical Optical Technology
• BN — Ballistic Number
• CC — Crew Compartment (NASA)
• SLOC — Single Line Of Code

• CMF — controller, motor, forward
• HESSI — High Energy Solar Spectroscopic Imager
• MEIU — Main Engine Interface Unit
• L&T — Laboratories and Test
• COSM — checkout servicing and maintenance
• COFAC — Construction Facility
• SMDS — Statistical Multiplexer Data System
• GIWG — Ground Interface Working Group
• MSIF — Multisystem Integration Facility
• CAS — cost accounting standard
• CVE — Complete Vehicle Erector
• HSIG — Hermetically Sealed Integrating Gyroscope
• GMCC — Ground Mobile Control Center
• IRCS — Integrated Resource Control System
• MFE — midfrequency executive
• BOF — beginning of file
• SRS — Systems Requirements Specification
• HGM — Hot-Gas Manifold
• E/L — Entry/Landing
• BE — Bell End
• IOPT — Input/Output Parameter Table
• LOFO — Low-Frequency Oscillation
• HOST — hardened optical sensor test bed
• CMAR — Configuration Management Action Request
• EAD — ElectricallY Alterable Device
• MAR — Mission Assurance Requirements
• MCCP — Mission Contamination Control Plan
• IVC — Intervehicular Communication
• CUF — cross-utilization file
• EHSD — existing hardware/software data base
• LATRS — Laser Acquisition and Tracking System
• CAMP — computer-aided message processing
• IN — Information Systems Directorate (KSC)
• GSCU — Ground Service Cooling Unit
• HMA — Hypergolic Maintenance Area
• POIC — Payload Office Integration Center
• MBSU — Main Bus Switching Unit
• SOCB — Space Operations Control Board
• DASA — dual aerospace servoamplifier
• BSI — Booster Situation Indicator
• DLR — Designs Loads Report
• LOR — Line Outage Recorder
• MEFE — Mission-Essential-Function Equipment
• HFMP — Human Factors Management Plan
• DNS — Departure Nuclear Stage
• L3 — NDS payload signal
• IDAR — interim data assessment review
• BW — Bridge Wire
• ISTB — Integrated Subsystem Test Bed
• IRAMS — inertial reference alignment monitor system

• SSF — System Support Facility
• HDRSS — high-data-rate storage system
• ICRP — International Council on Radiation Protection
• HVDS — Hazardous Vapor Detection System
• CAA — Composite Audio Amplifier
• GVTA — Ground Vibration Test Article
• FLAIR — functional language articulated interactive resource
• FPIT — field preinstallation test
• MBB — Messerschmitt-Boklow-Blahn
• MENS — Mission Element Needs Statement (OPNAV)
• EPSP — experiment power switching panel
• BSDP — booster-stage discharge pressure
• MIMO — multiple instruction, multiple data paths
• CS — Critical System
• IMDB — Integrated Maintenance Data Base
• BRM — Baseline Reference Mission
• LCG — liquid-cooled garment
• MCC-K — Mission Control Center, Kennedy
• LSSM — Launch Site Support Manager
• DTI — Development Test Instrumentation
• PRB — Peer Review Board
• DCRR — Design Change Requirement Record
• DSOT — Deep Space Operations Team
• HRPS — Hazard Reduction Precedence Sequence
• GOSP — Ground Operational Support Plan
• DEL — Deorbit, Entry, and Landing
• FPSP — Focal Plane Signal Processor
• SA — Supplemental Agreement
• M/I — Minimum Impulse
• CDR — Central Data Recording
• MOV — Main Oxidizer Valve
• ISATS — integration spacecraft automated test system
• ERBM — extended-range ballistic missile
• VSS — Voice Switching System
• HSR — Houston Support Room
• HRSI — High-temperature Reusable Surface Insulation
• EOAS — Engineering Order Accountability System
• GMCL — Ground Measurements Command List
• GMF — Ground Module Force
• FLAG — Flexible Assignment Generator
• MPPSE — Multipurpose Payload Support Equipment
• EMCS — Enhanced Mission Communication System
• IMADS — information management assimilation and delivery system
• CCU — Crew Compartment Umbilical
• IGAX — Inner Gimbal Axis
• IDRA — Interdivision Revision Authorization
• IK — Inner Keel
• GPRP — Government Production Research Property
• IDMRD — intermediate and depot maintenance requirements document
• RER — Receiver-Exciter Ranging

• ODM — Operational Data Message
• MAIR — Manufacturing and Inspection Record
• MCVP — Materials Control and Verification Program
• KCR — KSC Change Request
• HAINS — high-accuracy inertial navigation system
• CDA — cesium-dideuterium-arsenate
• ISN — Internal Statement Number
• MMIA — Monolithic Microwave Integrated Amplifier
• IED — Interacting Equipment Document
• EQE — Event Queue Element
• BJR — Blockhouse Junction Rack
• CME — Commercial Measuring Equipment
• BCE — Burn Control Element
• DETIR — Defensive Technology Information Repository
• CCT — command/control transmitter
• MPCA — midpower controller assembly
• IOL — interoffice letter
• LBET — Large Beam Expander Technology
• HSTF — Hypergolic System Test Facility
• DSOT — Data Systems Operations Team
• ECK — Emergency Communication Key
• HFTE — Human Factors Test and Engineering
• EFP — ESA-furnished property
• LTDT — Langley Transonic Dynamics Tunnel
• BDP — Burst Detection Processor
• BUORD — Bureau of Ordnance
• MPGHM — Mobile Payload Ground Handling Mechanism
• CCP — Configuration Control Panel
• LOCB — Launch Operations Control BUilding
• LDAR — Lightning Detection and Ranging
• INCO — instrumentation and communication officer
• GDSSR — GDSD staff support room
• MHF — Medium High Frequency
• HMU — Hardware Mockup
• H&D — Hardened and Dispersed
• JSL — Job Select Logic
• MCPP — Mission Configuration Product Plan
• LPTTL — Low-Pressure Transistor-Transistor Logic
• CCS — Configuration and Control Segment
• CMA — Command Modulator Assembly
• GSIF — Ground System Interface Facility
• GCCO — Ground Control Checkout
• HEF — High Efficiency
• CCU — Coupling Control Unit
• EPIRSS — extended-performance infrared search set
• ERCAR — electrochemically regenerable CO2 absorber and
• CC — Corner Cube
• MECCA — Master Electrical Common Connector Assembly
• BMA — body-mounted accelerometer
• LHCL — liquid hydrogen chloride

• IEMCAP — Intrasystem Electromagnetic Compatibility Computer Analysis Program
• OLA — Office of Legislative Affairs
• GLS — Ground Launch Sequencer
• L — Lumen
• HMV — Hydrogen Manual Valve
• CIDSC — Contractor In-House Data Support Capability
• CAS — Crew Accommodation System
• L/R — locus of radius
• LTHIS — laboratory test hardware inventory status
• IDAS — Integrated Data Acquisition System
• JSLWG — Joint Spacelab Working Group
• CMC — Complex Monitor and Control
• LRSI — Low-temperature Reusable Surface Insulation
• LAI — Logistics Artificial Intelligence
• CSP — Certified Special Processor
• IDCA — Inverter Distribution and Control Assembly
• DFL — Decommutator Format Load
• IRST — infrared search track
• EMRLD — excimer moderate Raman-shifted laser device
• LUPWT — Langley unitary plan wind tunnel
• CCS — Console Communication System (NASA)
• CCC — Command Control Console
• CHIP — College Hire Indoctrination Program
• MSIS — man-systems integration standards
• CTS — Center Telecommunications System
• FAA — False Alarm Avoidance
• BDI — Budget Data and Integration
• CHROMEX — Chromosome and Plant Cell Division in Space
• MRDB — Mission Requirements Data Base
• KEW — kinetic-energy weapon
• CCC — Consolidated Controls Corporation
• CAPS — Crew Altitude Protection System
• DSS — Destination Surface Systems
• DORIS — Determination of Orbit Radio Positioning Integrated from Shuttle
• BOD — bright-object detector
• MSSRV — Mars surface-sample return vehicle
• GBOTV — ground-based OTV
• OSC — Office of Space Communications
• MARRS — mission analysis and reconfiguration requirements system
• CAS-P — CAS pitch control mode
• MPOR — Master Power-On Reset
• CDCM — coupling display, manual control IMU
• MINISAT — Miniature Satellite
• L/M — list of materials
• ENG — ElectronYstagnogram
• MOMS — Mobile Optical Measurement System
• IWG — Interface Working Group
• MOCS — Multichannel Ocean Color Sensor
• DSSM — Dedicated Solar Sortie Mission
• IASS — Inverter/ATCS Support Structure

• IOCP — ITS On-board Computer Program
• IDO — interdivisional operation
• CVA — Convair Astronautics
• IMCR — Integrated Master Control Record
• LFM — Local Focus Mechanism
• IVS — Interface Verification Summary
• BCID — baseline candidate item data base
• GIDD — GSE Interface Definition Document
• TDD — Technical Description Document
• ETEDB — External Thermal Environment Data Base
• EXTRAJ — ascent trajectory
• MSK — Manual Select Keyboard
• LOSS — Lunar Orbital Space Station
• DWT — dog wags tail
• HPOL — High-Power Optics Laboratory
• CADFISS — computation and data flow integrated subsystem
• L/H — Local Horizontal
• HSK — Horizontal Sling Kit
• MPLN — Maintenance Planning (Data Base)
• I3L — isoplanar integrated injection logic
• FLLK — frustum-lifting lug kit
• ESA — Earth Science Applications
• DINS — Defense Inertial Navigation System
• DMSIF — DMS Integration Facility
• CMF — Complex Maintenance Facility 
• MSM — Mission Services Manager
• HELF — High-Energy Laser Fluence
• LFOP — Landing and Ferry Operations Panel
• NPR — NASA Procedural Requirement
• ETUD — external tank umbilical disconnect
• HEXAD — developmental 6-axis IMU
• CIP — Change Information Page
• MBL — Mobile Unit (TACAN Station)
• FCB — Fracture Control Board
• CCC — Concurrent Computer Corporation
• BMS — Battle Management Simulation
• CAS — Coverage Analysis System
• EVSS — Extravehicular Space Suit
• LEDC — Low-Energy Detonating Charge
• NAC — Network and Communications
• IPMS — Inertial Performance Measurement System
• HWIL — Hardware In Loop
• MER — Mars Exploration Rover
• IGOS — Interactive Graphic Orbit System
• MACDS — Monitor and Control Display System
• MCDU — Multifunction CRT Display Unit
• HDRM — high-data-rate multiplexer
• MDTSCO — McDonnell Douglas Technical Service Company
• JPIC — Joint Program Integration Committee
• BSM — beam-steering mechanism

• INTASAT — Instituto Nacional de Tecnica Aerospacial SATellite
• HPAU — High-Power Amplifier Unit
• MESSOC — model evaluation of Space Station operations cost
• BAROC — Baroset Correction
• CSS — Cross Support Services
• FWC — filament-wound case
• MIUS — Modular Integrated Utility System
• LMD — Large Mirror Development
• DAS — Demand Access Service
• BM — Ballistic Missile
• HTE — hazardous top-level event
• LEAP — Lightweight Exoatmospheric Projectile
• IMRB — Interim Mission Reconfiguration Base
• FR — Flash Report
• GNCSIM — GN&C simulation
• HGAS — high-gain antenna system
• EF — Electronic Field
• CMS — Command Matrix Switch 
• IGA — Inner Gimbal Angle
• CRALT — CNES Radar Altimeter
• RER — Receive Echo Request
• LRW — Left Rendezvous Window
• MILES — a computerized schedule system
• SSC — Station Support Computer
• HPFT — High-Pressure Fuel Turbopump
• BCH — Base Chaudhuri-Hocquenghen
• IITCS — Igloo Internal Thermal Control Section
• DP — Digital Processing
• HFDP — Human Factors Development Plan
• MRWG — Mission Requirements Working Group
• IF/FDM — intermediate frequency/frequency division multiplexer
• ILCCS — integrated launch checkout and control system
• LPFTP — low-pressure fuel turbopump
• KCV — KKV carrier vehicle
• LIP — Land Impact Program
• ICHA — Integrated Cargo Hazard Assessment
• PCC — Processing Control Center
• IRAN — inspection and repairs as necessary
• HDRA — high-data-rate assembly
• KDV — KKV deployment vehicle
• BS — Backup Subsystem
• KIS — Kitting Instruction Sheet
• CAR — Corrective Action Record
• CSTU — Combined Systems Test Unit
• BM — body-mounted
• LLR — Load-Limiting Resistor
• LAM — Low-Altitude Mission
• LBDT — low-bay dolly tug
• JST — joint systems test
• P2P — Program to Program

• SCM — Single Column Model
• MNET — Mission and Data Operations Directorate network
• HFX — high-frequency transceiver
• GE/B — General Electric Burroughs
• MJS — Manipulator Jettison System
• JC — Job card
• MBPS — Main Bus Power Supply
• LERC — Lewis Research Center
• HTLL — high-test-level language
• HAD — heat-actuated device
• DMSSIM — DMS simulation
• LOOMS — laser optics operations and maintenance support
• UCAV — Unmanned Combat Air Vehicle
• LROSS — Long-Range Optical System Study
• EWW — extended workweek
• LSRM — Life Science Research Module
• MSC — Mission Systems Contract
• LOAP — List Of Applicable Publications
• HOW — handover word
• HRDR — high-rate digital recorder
• BP — budgetary and planning
• HERSCP — Hazardous Exposure Reduction and Safety Criteria Plan
• MSO — Mars Science Orbiter
• SAR — Schedule and Requests
• BG — Back Gear
• GRNC — group not counted
• MRI — Measurement Requirements and Interface
• MATS — Master Manufacturing and Test Schedule
• CCP — Change Control Panel
• CAR — Certification Analysis Requirements
• KEAS — Knots Equivalent Air Speed
• ILSCP — integrated logistics support concept plan
• EPS — Emergency Planning Subcommittee
• BLPG — buried long-period grating
• LLS — Launch and Landing Site
• CTT — Command Transfer Tape
• ISTP — Integrated Space Transportation Plan
• HASC — High-Altitude Surveillance Concept
• IRTCM — Integrated Real-Time Contamination Monitor
• DSI — Distributed System Integration
• HSCU — Hydraulic SUPPly and Checkout Unit
• BFP — Buyer-Furnished Part
• J/M — jettison motor
• IMBLMS — integrated medical/behavioral laboratory measurement
• LHOP — Laser-Hardened Optical Payload
• PAA — Phased Array Antenna
• HRD — high-rate dosimeter
• MHSC — Manipulator Handset Controller
• BD — Binary Discrete
• TIP — Technical Implementation Plan

• MRC — Measurement Requirements Committee
• GTP — General Test Plan
• MSR — Mission Support Room (NASA)
• ME — Memory Effect
• HLCM — high-level control module
• BBC — before-business clearance
• GPCB — GOAL Program Control Block
• IEFT — Integrated Experiment Functional Test
• CCP — Controlled Components Program
• GORR — ground operation readiness review
• FOPP — follow-on parts production
• ESC — Electronic Systems Command
• BCH — binary-coded hexadecimal
• GAIN — Graphic Aids for Investigating Networks
• ICTC — Inertial Component Temperature Controller
• MDOP — maximum design operating pressure
• MECF — Main Engine Computational Facilities
• DTS — Digital Test Set
• IDSD — Institutional Data System Division (JSC)
• RPS — Remote Proposal System
• INT — Integrated Test
• SDS — Shuttle Drawing System
• SOCB — Space Operations Change Board    
• LHRCS — left-hand reaction control system
• L2 — secondary navigation signal
• LEFF — launch effectivity
• MCCC — Multimission Control and Computing Center
• JSAT — Joint Structural Assessment Team
• PIP — Process Improvement Project
• GMEM — GPC memory
• GPBIM — general-purpose buffer interface module
• STRV — Space Technology Research Vehicle
• LBNPD — Lower Body Negative Pressure Device
• PSS — Packet Switching System
• HIC — Hardware Integration Contractor
• BPS — Boost Propulsion System
• IEEP — incapacitated emergency egress practice
• LDD — logical data base design
• IDEAS2 — independent design and evaluation of advanced spacecraft
• HCDB — Historical Cost Data Base
• IVAR — Internal Variable
• GSTDN — Ground Satellite Tracking Data Network
• SOC — Simulation Operations Center
• I&RS — instrumentation and range safety
• INTC/O — integrated checkout
• LSSP — Launch Site Support Plan
• MCCG — Mission Command and Control Group
• DTF — Design & Test Facility
• MSDT — Multiple Shuttle Data Tape
• MRCR — Measurement Requirement Change Request

• LI — Laser Illuminator
• CDM — Configuration Design Module
• OCT — Office of the Chief Technologist
• JETS — joint electronic-type system
• BV — Balanced Voltage
• CDP — Confidence Development Program
• IAF — Interactive Facility
• CCP — Corrosion Control Plan
• DIDTHT — defense-in-depth threat
• EHX — experiment-dedicated heat exchanger
• HFMU — high-fidelity mockup
• LTWG — Launch Test Working Group
• POIC — Payload Operations Integration Center
• ESC — Executive Safety Committee
• JPC — Joint Power Conditioner
• CCL — Closed-circuit loop
• VITS — Video Teleconferencing System
• OTV — Operational Television
• TCA — Telemetry Channel Assembly
• DTV — Developmental Test Vehicle
• RLV — Reusable Launch Vehicles (aeronautics)
• EDS — Earth Departure Station
• ICCWG — Intercenter Communication Working Group
• CAT — Control Attenuator Timer
• IMDS — Integrated Monitoring and Diagnostics System
• MMRS — Manned Military Recovery System
• IECS — Igloo Environment Control Subsystem
• LPOTP — low-pressure oxidizer turbopump
• IORTD — input/output relationships and timing diagram
• IMTF — Integrated Manufacturing Test Facility
• RS — Symbol Rate
• MCLT — Maximum Cruise Level Thrust
• KPSM — Klystron Power Supply Modulator
• ISRB — Integrated System Review Board
• CE — Current Expendable (NASA)
• HAB — high-altitude burst
• LPOX — low-pressure oxygen
• CFD — Central Flight Dynamics
• IWBS — Indirect Work Breakdown Structure
• TSO — Technical Support Office
• HOLC — high-order language computer
• CRT — Computer Response Time
• DTT — Design Test Tool
• HSB — heat shield boost
• IOSC — Integrated Operations Support Complex
• SOC — Science Operations Center
• ETF — Eglin Test Facility
• LVSSTS — launch vehicle safety system test set
• ISPF — interactive system productive facility
• MS — Mars Surveyor

• HVPS — high-voltage power supply
• EV88 — Experiment Version 88
• LECP — leading edge connective heat transfer program
• PDF — Programmable Data Formatter
• CDP — Computer Data Processing
• GOS — Ground Operations System
• IPF — IUS Processing Facility
• CAR — configuration and acceptance review
• CSS — Communications Services Section
• IFCG — Interface Control Group
• M/W — make work
• MASER — microwave amplification through stimulated eadiation
• ETS — Engineering Test Satellite
• WSTF — White Sands Test Facility
• MBCP — Mission Budget Capture Program
• MCO — Mission Control Operations
• WART — White Sands Auxiliary Remote Tracking
• MIS-PLAN — MIS-payload activity network
• MCPC — Manipulator Controller Power Conditioner
• IRP — Inertial Reference Package
• CAM — Centrifuge Accommodation Module
• VITS — Video Teleconferencing Service
• LSSC — launch site support contractor
• WOTS — Wallops Orbital Tracking System
• BFSPLP — BFS payload preprocessor
• LGA — low-gain antenna
• EP — Education Programs
• CEF — comsec equipment facility
• MOCF — Mission Operations Computational Facility
• LAP — Linear Accelerometer Package
• ICAI — intelligent CAI
• GSDS — Goldstone Duplicate Standard
• CC — communications control
• IDTA — Interdivisional Technical Agreement
• MECLSI — mission equipment configuration launch site installation
• HVE — high-voltage electronics
• LHFEB — left-hand forward equipment bay
• CDC — Computer Development Center
• DR — Deputy of Resources
• MSRP — Mission Support Real Property
• HPBRM — high payload baseline reference mission
• HPOT — high-pressure oxidizer turbopump
• HELCUSS — high-energy laser computerized unmanned space
• CS — Constellation Systems
• LVP — Low-Voltage Pressure
• CA — Critical Analysis
• LLCF — Launch and Landing Computational Facility
• IFASC — Integrated Functions Assessment Steering Committee
• CINCNORAD — Commander-In-Chief, North American Aerospace
• M/SCI — mission/safety-critical item

• LWA — Local Wavefront Analyzer
• NOC — New Operations Center
• NPP — Network Planning and Preparation
• MER — Maximum Error Rate
• ERBACT — ERB action item
• IOQE — input/output queue element
• MITAS — Missile Threat Analysis Simulation
• IEEE — International Electrical and Electronic Engineers
• M2P2 — multimission production plan
• HDRS — high-data-rate system
• KEV — kinetic-energy vehicle
• MOCV — Manual Oxygen Control Valve
• HRE — Hardware Reuse Evaluation
• IOHA — Integrated Operating Hazard Analysis
• PP — Program Plan
• LOO — Launch Operations Orders
• SME — Scan Mirror Electronics
• L/E — left-hand engine
• LBTB — launch base test plan
• H/A — hazardous area
• ILSSE — Integrated Life Science Shuttle Experiment
• ILO — Integrated Logistics Operations
• SHARES — Shared Resources High Frequency Radio Program
• MFRM — Mobile Foot Restraint Manipulator
• HLTL — high-level test language
• LEADS — LWIR Exoatmospheric Discrimination Study
• MP/G — material procedure government
• HMTT — Hurricane Mesa Test Track
• CINCNET — Commander-in-Chief Network
• LFAM — low-frequency accelerometer modes
• MOSR — Mission Operations Support Requirement
• MFO — Major Function Overlay
• LOSR — Line-Of-Sight Range
• LAMP — LODE Advanced Mirror Program
• HPC — corrected pressure altitude
• HDRR — high-data-rate recorder
• MIDAS — Mission integrated design analysis simulator
• METS — multienvironment test system
• DAT — direct-ascent threat
• GR/AL — graphite-aluminum
• CAL — canister airlock
• MPTS — multipurpose tool set
• FFF — Final Factory Functional
• CAM — Control Account Managers
• IEIWG — International Element Interface Working Group
• DBD — dead band
• LRES — Liquid Rocket Engine Stability Program
• COMP — Computation Of Rendezvous Targeting
• CDC — Collins Defense Communications
• RE — Ranging Equipment

• NMC — National Center for Atmospheric Research
• ECT — Experiment Command Tape
• BC — Bolt Center
• OMI — Ozone Monitoring Instrument
• LC&CO — launch control and checkout
• LVTC — Launch Vehicle Test Conductor
• MRTFB — U.S. Major Range And Test Facility Base
• GPRN — GOAL Test Procedure Release Notice
• LHP — left-hand panel
• HAST — high-altitude supersonic target
• I/T — intertank
• IMOC — Integrated Mission Operations Complex
• MDCA — Main Distribution Control Assembly
• SAR — Software Acceptance Review
• HMB — Hard Mobile Basing
• CINCAD — commander-in-chief, Air Defense
• HPOTP — high-pressure oxidizer turbopump
• MMR — mass memory ready
• POLAR — Polar Auroral Plasma Physics Spacecraft
• GSTP — Ground System Test Procedure
• LCHTF — low-cycle high-temperature fatigue
• CC — Configuration Control
• LCR — Low Cross Range
• SHARES — Shared Resources
• HRSO — high-resolution solar observatory
• LEID — low-energy ion detector
• CT — Compatibility Testing
• SPIP — SSP's Process Integrity Plan
• HESSI — High Energy Squib Simulator Instrument
• MOW — Mission Operations Wing
• MOSTT — mosaic optical sensor technology test bed
• BB — BrassBoard
• HM — Hinge Mount
• JCCS — job card control system
• ICI — Interim Configuration Inspection
• SSR — Solid State Recorder
• CCP — Change Control Package
• SMA — S-Band Multiple Access
• I-LOAD — initialization load
• HCSHT — high-carbon steel heat-treated
• GPSCP — GPS computer program
• KCRT — keyboard cathode-ray tube
• TIP — Technical Information Program
• KHILS — KKV Hardware-in-the-Loop Simulator
• LSD — Launch Support Directive
• HSRV — Heat-Source Reentry Vehicle
• SSA — S-Band Single Access
• IEMC — Intrasystem Electromagnetic Compatibility
• LSTD — Laser System Technology Demonstration
• IFDL — interfacility data link

• HIBREL — high-brightness relay
• IRME — Initiator Resistance Measuring Equipment
• SMC — Sciences Mission Directorate
• MSIA — Multispectral Image Analyzer
• PI — Program Integration
• LEH — launch and entry helmet
• MAAS — Mission Area Analysis System
• IOC — Initial Operational Concept
• IPAS — Integrated Problem Assessment System
• IUO — interunit order
• IUI — Integrated User Interface
• DTS — Distributed Teleconferencing System
• CSU — central switching unit
• MEV — mass excursion vehicle
• GVL — Ground Vibrations Laboratory
• WIND — Solar Wind Observer
• HDX — half-duplex
• IMPACT — Integrated Material Productivity Action
• WSTF — White Sands Training Facility
• LVR — low-voltage release
• ERNO — Entwicklungts Ring Nord Organization, Space Division of Eum, VFW-Fokker-Mannheim, Germany
• HEAO — High-Energy Astronomy Observatory
• HRDA — high-rate data assembly
• BAF — Barnes Absorption Filter
• IMUPLM — inertial measurement unit prelaunch monitor
• MEKF — Misson Equipment Kit Facility
• L1 — primary navigation signal
• MOLFLUX — molecular flux
• LFAP — low-frequency accelerometer pogo
• IPSL — Interface Problem Status Log
• TTR — Time to Restore
• MITOC — missile intercom technical operational communication
• VHF — Video High Freqency
• INSAT — India Communications Satellite
• EMC — Element Multiplexer/Correlators
• MHP — Move and Handling Procedure
• GMIL — KSC STDN station
• MIU — Malfunction Insertion Unit
• IDOT — Instrument Digital On-line Transcriber
• MDSS — Mission Data Support System
• KHB — KSC Handbook
• LOR — Lunar Orbit Relay
• LINJET — Liquid Injection Electric Thruster
• LACIP — large-area crop inventory program
• PMB — Program Management Budget
• LAS — Low-Altitude Sensor
• GSIG — Ground Systems Integration Group
• LDZ — Lithium-Depleted Zone
• MMOS — Multimode Optical Sensor
• MMES — MSFC Mated-Element System

• MEBO — main engine burnout
• MADC — multiplexer analog-to-digital converter
• SSO — Source Selection Official
• IPTCS — Igloo Passive Thermal Control Section
• HLC — Hybrid Load Controller
• MFSP — macrofunction signal processor
• MSOIN — Minor Subcontractor Or IDWA Notification
• NISN — NASA Information System Network
• SIC — Support Identification Code
• HMPAC — helmet-mounted multipurpose applications control
• MSCR — measurements/stimuli change request
• MIPIAN — computer-assisted process planning
• GSSF — General Service Stock Fund
• PI — Program Introduction
• BOP — Basic Overall Polarity
• LOFAR — low-frequency acquisition and ranging
• MMUS — Mass Memory Unit Simulator
• HFRA — high-frequency recovery antenna
• SOS — System of Systems
• MNEE — mission nonessential equipment
• ICF — Interface Control Function
• IHTV — interim hypersonic test vehicle
• TSA — Transportation Security Agency
• SAS — Shuttle Avionics System
• PAA — Program Alignment & Analysis
• HTM — high-throughput mission
• FEMCPL — facilities and environmental measurement component parts
• HFA — high-frequency accelerometer
• MDD — mate/demate device
• MEP — Mars Exploration Program
• JIR — Job Improvement Request
• HEAP — high-energy aimpoint
• EXCABL — expert cable
• PSC — Policy and Strategic Communications
• JIP — Joint Installation Plan
• OD — Operations Directive
• MC&C — Measurement, Command, and Control
• TR — Transition Review
• CSO — Communication Service Office
• MSM — Manned Support Module
• SSC — Swedish Space Corporation
• MCI — midcourse interceptor
• IOPL — integrated open-problem list
• IPAR — Irregular Parts Authorization Request
• MCRG — Mission Configuration Requirements Group
• K/S — Kick Stage
• GSLS — Ground Station Link Survivability
• LWHS — Lightweight Headset
• IFTD — Interface Terminal Distributor
• DPP — deployment/pointing panel

• SNIP — Space Network Implementation Plan
• MPST — Multipurpose Support Team
• GSVOO — ground station visibility of orbiting objects
• MII — Master Inspection Item
• HI — Honeywell, Incorporated
• LOSHEA — line-of-sight hard Earth angle
• MPF — Mars PathFinder
• LFAF — low-frequency accelerometer flutter
• HRC — Hasselblad Reflex Camera
• DC — Differential Corrections
• USM — Unit of Service Metric
• ICAPC — increased-capability adaptive payload carrier
• JIS — joint integration simulation
• MIMOSA — Mission Modes And Space Analysis
• GUSB — guided, unified S-band
• LMLG — Left Main Landing Gear
• RPS — Retrieval Processing System
• HEDS — High Endo Designation Sensor
• SMD — Space and Missile Defense
• HOFCO — horizontal functional checkout
• HEOS — high endo designator sensor
• MICOS — multifunctional infrared coherent optical sensor
• ISPG — Institutional Support Planning GrouP
• NSD — Network Services Division
• WIND — Project namd for Interplanetary Physics Laboratory
• ILSC — Integrated Logistics Support Concept
• MSDOS — Mass Storage Digital Operating System
• LMDE — Lunar Module Descent Engine
• CB — coax interface bracket
• ISLM — integration shop and lab manager
• KBIM — Keyboard Interface Module
• SRB — Systems Review Board
• LVSG — Launch Vehicle Study Group
• LOP — Launch Operations Panel
• KNO — Kano, Nigeria
• CSO — Chief S&MA Officer
• NOP — Network Operating Plan
• HSG — high-speed gear
• JISWG — Joint Integrated Simulation Working Group
• IDSO — interdivisional sales order
• ST — Senior Scientific and Technical
• LUS — Liquid Upper Stage
• IOP — Ignition Over Pressure
• LTVC — Linear Terminal Velocity Constraint
• CC — Commercial Control
• MFV — Main Fuel Valve
• IH/SR — integrated hardware/software review
• HPFTP — high-pressure fuel turbopump
• LCUG — liquid cooling undergarment
• MASTIF — Multiaxis Spin Test Inertial Facility

• JSTPS — joint strategic targeting planning staff
• PRD — Resources Planning Division
• MSOCC — Multisatellite Operations Control Center
• MSDP — Mission System Distribution Panel
• LLI — limited-life item
• PCN — Page Change Notice
• PMP — Point-to-Multipoint
• GNIC — G&N indicator control
• PRG — Program Requirements Guidance
• HEOR — Historical Event Operation Record
• INS — Integrated Network Services
• LSSE — Laser Sensor Support Equipment
• MCIR — Mission Configuration and Implementation Requirements
• ISTP — Integrated Short-Term Plan
• GRS — Global Receiving System
• MTRS — McMurdo Tracking Relay System
• IGS — International Ground Stations
• GR — Ground Rule
• IC/ES — Intercommunication/Emergency Station
• WART — WSC Alternate Relay Terminal
• HPV — high-pressure valve
• KOSC — Kennedy Operations Support Center
• LACIE — large-area crop inventory experiment
• TDS — Tracking Data System
• CC — Compatibility Change
• HRAA — high-rate acquisition assembly
• FM — Functional Managers
• NSD — NISN Services Document
• KDN — Kinetically Designed Nozzle
• MHW — Multihundred Watt
• MIIA — Merritt Island Industrial Area
• MSL — Mars Science Laboratory
• OCT — Optical Communications Technologies
• SOE — Standard of Excellence
• LANES — III LAN extensible simulator
• MIPIR — missile impact pointing imaging radar
• IGS — International GNSS Service
• PDF — Portable Date File format
• VOTS — Voice Teleconferencing Service
• IPP — Installation-Provided Property
• LAM — Laser Altimetry Mission
• SMD — Science Mission Directorate
• HVSF — Honeywell Verification Simulation Facility
• GS — Goldstone
• MS — Mission System
• SPF — Service Providing Facilities
• MRR — Mission Requirements Request
• MPG — Multipoint Grounding
• SDO — Space Discovery Office
• SEF — System Engineering Facility

• PSR — Physical Sciences Research
• IWDS — inter-work-package distributed system
• SIP — Standard Internet Protocol
• SSEO — Space Science and Earth Observation
• IMW — intelligent machining work station
• IOD — Initial Orbit Determination
• HO — hydrogen-oxygen
• MN — main bus
• HRMA — high-resolution mirror assembly
• KELV — KKV/ESM launch vehicle
• TSA — Telemetry Simulator Assembly
• LFRR — low-frequency radio range
• HOLAB — holographic laboratory brassboard
• IBC — impurity-band conductor
• MAVEN — Mars Atmosphere and Volatile Evolution Mission
• LDEF — long-duration exposure facility
• NOC — Networks Operations Center
• TIP — Things in Progress
• GRD — Ground Detector
• LPFT — Low-Pressure Fuel Turbopump
• SSF — Support Service Facilities
• ILSIM — integration of lethality studies into model
• UMA — University of Massachusetts Art
• SPS — Service Planning Segment
• MPA — Metric Processor Assembly 
• RE — Recurring Engineering
• SCS — Specialized Customer Services
• PTC — Pacific Telecommunication Council
• MEU — Medium External Unpressurized
• HPI — high-performance insulation
• IMC — image motion compensation
• HSA — heat shield abort
• TAP — Tracking Acquisition Processor
• FOS — Flight Operations System
• TDS — Time Distribution System
• ICC — Integrated Computer Complex 
• LSFR — launch site flow review
• LAW — low-altitude weapon
• LR — Lunar Rendezvous
• HRTS — HR&T system
• HSR — High Sample Rate
• MSCS — Mobile Service Center System
• RM — Review Manager
• PCS — Personal Communication Service
• DPI — Detail Program Interrelationship
• MFTIO — Minimum Flyout Time For Orbital Interception
• OSO — Operations Services Office
• MSSTP — Military Space Systems Technology Plan
• TTR — TDRSS Trouble Report
• JEA — joint-endeavor agreement

• IMUGSE — IMU ground support equipment
• GL — Government Led
• LMP — List Measurement Point
• PRA — Probabilistic Risk Analysis
• SOC — Space Operations Council
• LOC — Loss of Crew
• ITS — Integration & Test System 
• LLOS — Landmark Line of Sight
• ISM — Image Steering Mirror
• NS — Netscape Navigator
• HFP — Hardened Focal Plane
• IL — Internal Letter
• GSTAR — Saudi Arabian communications satellite
• IWP — Indirect Work Package
• PSS — Platform System Services
• IPM — integration program manager
• PCC — Permanent Consultative Committee
• SA — Spacecraft Adapter
• USS — User Services System
• RPS — Record and Playback Subsystem
• SMA — Scan Mirror Assembly
• LFF — lower forward fuselage
• TR — Transition Readiness
• ILT/RT — imprecisely located target/relocatable target
• CAS — computer airspeed
• LBS — L-band subsystem
• SM — Statistical Multiplexer
• RER — Radar  Extimated Rain
• IOBPS — input/output box and peripheral simulator
• TA — Technical Authorities
• SSA — Symbol Synchronizer Assembly
• MOC — Mission Operations Complex
• TMP — Technology Management Plan
• HSS — high stress/strain
• IWFS — Integrated Waste Fluid System
• HSDL — high-speed data line
• TIP — Transition and Implementation Planning
• DES — Distributed Evaluation System
• LIB — Left Inboard
• LH — Left-handedness
• LOCS — Local Optical Correction System
• SC — Spacecraft
• LEP — large external pressurized
• II — implementing instruction
• POC — Payload Ops Center
• TMP — Travel Manager Plus
• MSR — Monthly Status Reviews
• LOGMOD — logic model
• PLC — Postlanding Communications
• SRB — Standing Review Board

• IPP — Innovative Partnership Program
• MMCCB — Multimission Change Control Board
• ICL — Interface Control Layout
• ICC — Intercenter Computer Complex
• LSD — Logistics Support Depot
• GPA — general-purpose amplifier
• LCD — Launch Countdown
• SOS — Science on a Sphere
• PPS — Packet Processing System
• PIP — Premium Internet Protocol
• SSE — Space Science Enterprise
• MDM — Metadata Manager
• NSF — Network Support Facilities
• RM — Requirement Manager
• ME — Mission Engineering
• PRG — Program and Resources Guidance
• NWAG — NASA Wireless Advisory Group
• SC — Statement of Capability
• PSM — Power Slice Module
• SCR — SOMO Change Request
• NM — Next Month
• LPS — Landsat-7 Processing System
• PSE — Programmable Serializer Equipment
• MPA — Metric Pointing Assembly
• PSE — Program Systems Engineering
• HSP — high-speed printer
• MOL — Mission Operations Link
• SMC — Sensor Management Council
• MSL — Mission Support LAN
• LR — Lunar Relay
• MSBLS-GS — MSBLS Ground Station
• SC — Space Communications
• ISP — Inertial Sun-Point
• SMC — Strategic Management Council
• SC — Security Critical
• USA — User Service Access
• MMS — Magnetospheric Multiscale Satellite
• SCS — Scan Correlated Shift
• SCM — Space Operations Commercialization Manager
• MSM — Mission and Science Measurement Technology
• MINISAT — Spanish Satellite
• PRA — Project Reporting Attribute
• STP — SCaN Transition Plan
• OC — Optical Character
• TA — Task Agreements
• IOP — Interoperability Plenary
• NIS — NOCC Information Server 
• IO — industral operations
• HH — handhold
• SOC — Science Operations Coordination

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